>> i need to be honest with you. it could take some days before the information is available to establish whether these detections can be confirmed as being from mh 370. in very deep oceanianic water, nothing happens fast. >> and when he says deep, he means water some three miles deep. a u.s. underwater drone is being prepared to scour the ocean floor near where the latest pings were heard. and as the search continues, so does speculation about what happened inside a cockpit. we are told the plane may have steered a curious course around ind neezian air space, a route that suggests an intent to avoid radar detection. we are in australia and talked to the u.s. navy captain in charge of the operation aboard the ocean shield. will? >> if this really is the missing plane and that's still a big if, how could you even begin to describe such a discovery? >> it certainly would be a miracle if this does turn out to be the aircraft location. >> a strong word with a stronger warning from u.s. navy captain from u.s. navy captain mark ma thus. >> i caution not to be overly optimistic. we have got some work to do before we can say we have a true contract. >> matthew's team is on the shield listening for pings for over three hours. >> what i would like to do is reacquire the signal, two, deploy the underwater vehicle with the sight scan sonar to map the debris field and three, switch out that sonar with a camera unit and take photographs of what would be the wreckage. >> slow and tedious work, nearly 15,000 feet almost three miles down. the extreme depth pushing the limits of the underwater drone, the blue fin 21 that would do a visual search for wreckage. >> certainly we're jumping to conclusions. we need to reacquire the signal. >> their biggest obstacle? time. the black box batteries are rated for 30 days, a deadline that's already passed. >> cautious measured optimism. we certainly want to reacquire it before we say yes we have done something good here. >> caution definitely a keyword. if you think about it we're one month into this search. one month ago, flight 370 vanished into thin air. as of right now we still don't have any physical evidence verifying that the latest leads are in fact the missing plane. if it does turn out that the plane is in this spot in the southern indian ocean, it will be so remarkable. remember there was no physical evidence guiding the ocean shield to this spot. it was simply a team of experts who did some amazing math and said look, go here, this is our best guess where you're going to find something. they put down this tpl and happened to hear a ping in the final hours, really, of the black box battery life. we don't have any confirmation yet. it will really be quite remarkable. >> an amazing stroke of luck if it does. thank you so much. now for weeks, sea operations experts have been saying it's not about finding the needle but figuring out the hay stack. how do you track down the needle after finding the hay stack. we have the president of the company that made the original flight data recorders. thanks for being with us. as you know, the sophisticated equipment on board this australian ship has twice picked up the signals. do you think they are the pings from the black boxes? what would lead us to believe that they could be? >> well, as we have talked ab, it's a very unique signature, the 37.5 kilo hertz. it sounded like a steady continuous signal from one of our pingers so we are very cautiously optimistic. >> 37.5 kilohertz doesn't happen in nature. that means that the battery has lasted longer than 30 days. we knew that the batteries could have expired by that point. what's the best case scenario on how much longer the battery can power the pinger? >> well, we have some design margin. we have always said that we could get a few extra days. after that the battery is going to degrade and the sound output is going to slowly diminish. i would say a matter of a few days. >> so it's going to weaken meaning that you would need the towed pinger locater to be closer to it? >> realistically, yes, as the sound power diminishes we will have to get closer and closer to it. >> you said over the weekend that the two rosecorders would t be able to sink their signals. is it possible that maybe the battery has completely died? >> it could be. or it's just in a different location. they just haven't picked it up but they are two independent devices that are not sink row nized. you should hear two signals. >> two sequences of clicks. if you have search crews and they can find the signal again, is it just about following where the signal gets stronger? is this a straight line process. >> i don't think it's that simple. it's like a game of marco polo. you're going to have to listen for the sond, make another pass and try to get closer until you get on top of it and then you can do some visual surveillance, map the floor and try to locate these things for real. >> and i think it probably strikes a lot of people that no one is really jumping to the conclusion that hey, this is the black box from the plane. we haven't drawn that connection yet. obviously it's promising. is there a situation where the signal could turn out to be false and if so is there a source that could be making this signal? >> these are very unique simple devices designed to emit this type of frequency and pulse ping. so this is exactly what they do. it's a very unique signature. for it to turn out to be something else would be highly unlikely. >> that is fascinating. thank you for explaining that to us. just ahead, it's one thing to fly around air space but it is another to completely avoid radar detection. a malaysian source tells cnn that this jet may have done just that. but something doesn't add up here. we will go to the flight simulator to tell you how the flight could have avoided detection. this is cnn live special coverage. cut! [bell rings] this...is jane. her long day on set starts with shoulder pain... ...and a choice take 6 tylenol in a day which is 2 aleve for... ...all day relief. hmm. [bell ring] "roll sound!" "action!" welcome back. if malaysian flight 370 skirted ind neezian air space, how did it happen? the plane takes off and then flying around the northern end of indonesia possibly to avoid radar detection. martin, give us a sense of what this would even look like. >> we can show you how it would look from the cockpit and the flight management system. the triangle is us flying on a course that would have taken us to beijing. you can see where things dramatically changed and this flight veered off course. so we have entered in the points that would make it come off course and then you see this sort of arc here? it's actually the outline of indonesia but off shore, so skirting around the island. to do that would be how many way points? >> about 18. >> but not hard to do. you can program that in fairly quickly. use something like the flight management system here. >> that's right. >> and program those in and be on your way. you don't have to use the auto pilot. we are assuming that they did. there is another way. >> there is. it's a very simple switch. we dial in the direction we want to turn. in this case i'm turning left and you press the button and it turns. >> you could make subtle adjustments not necessarily felt by the passengers or anyone else on board. you could also fly it manually. >> it would be a little more taxing to do that but technically it could be done. >> whether this was truly done to hide an aircraft or get around radar is unknown. i don't know that they were doing it for clthose reasons. >> it seems easy enough to fly around air space. but avoiding radar, does that make sense to you? >> you know, it's counter intuitive to what we're trained so i have to get out of my training. you're trained to always stay in contact all the time. but if you're thinking about this line of trying to get outside of normal operations, it is possible to do. so i'm not going to think impossible but it's a lot of work. >> we do have a scenario, it is my personal one, my personal favorite. we will show you one idea that has been discussed and that is the shadowing of another jumbo jet and this is what we're trying to simulate for you here. this is somewhat how it would look. you're trying to fly so close to another large aircraft that your blips on radar would literally merge together. so 370 would hide behind, you know, american airlines 88 in regards to what was seen by radar. it's nerve racking to look at what's it like to fly it? >> you would be hitting all kinds of turbulence, you would be in danger of hitting the other aircraft. >> if we had turned off our transponder and other devices? >> no, i don't think they would know. >> and it would have been dark as well so that would have hidden our presence. it's out there as a thought but reality wise, i don't know. >> it's like something if it were in a movie we would scoff at it as completely unrealistic. thank you for explaining that. we have this tantalizing flu but -- clue, but we can't say what it means. why not cut straight across. >> it starts up here and comes around the top and this is the area where everybody is focusing on. because the plane appears to skirt around the tip of indonesia. many people will suggest that the reason it did that was to avoid radar. >> many people are suggesting that but what i hear from you is that might not be the whole story? >> i think depending on the theory that you hear at any given moment, i think what it suggests more rather than just radar. most pilots will tell you they don't know where radar starts and where radar finishes but they do know where air space starts and finishes and therefore it could have well been trying to avoid going over indonesiian air space as well. what indonesia has said is that there is no sign and no evidence of mh 370 being picked up by ind neezian radar how could they not? thailand picked it up, malaysia picked it up. >> you think this is not the full story? >> i don't know. i would hesitate to say that but i think you have to raise an eyebrow. look. it went vastly up the northeast part, around the tip, down near the side and indonesia says there is no sign of it on ind neezian radar and we have asked them several times. what you end up with down here is exactly what -- to use the polite words of running out of fuel, that is exactly the endurance. >> fascinating stuff. we will be talking much more about the new mysterious clue and the malaysian minister saying it could be days if now weeks before more is released. we are live next and we're going to take a closer look at the pinger locator technology. what it can and cannot do. that's coming up. stay with us. >> on the one hand, the new find would end a month of frustrating uncertainty but it would also end hope that families and loved ones are still alive. authorities suggest that moment may not be far away. >> we are cautiously hopeful that there will be a positive development in the next few days if not hours. >> cnn nick robertson is in kuala lumpur. how are families handling this possibility that the plane did crash into the indian ocean? >> reporter: i talked to a union representative who represents some of the air crew that are still missing. he says for these families they are beginning to recognize that perhaps they're soon going to get some definitive information but there are a lot of families here, the chinese families who came to malaysia who left over the past couple of days frustrated and disappointed. they just don't want to believe this until they get hard evidence. either some debris or a real confirmation that it is flight 370 that is at the bottom of the ocean, a photograph or stronger confirmation. in the meantime they are just going to be patient and wait for that information. they have had their hopes dashed too many times but clearly as this gets closer, the pain is going to increase for all of these families, they will ultimately have to face the inevitable. >> you really feel for them and this investigation throughout hasn't been handled very well and that has been the most taxes on them. is i possible that some family members might not be persuaded by anything? >> you're always going to face that type of situation and it may depend on how much of the aircraft is recovered and what bodies if any is recovered. one of the things that just doesn't go away here and we heard it again in the government briefing today here in malaysia, that this notion that some people have survived on life rafts was knocked down by the defense minister today. >> some people really holding out hope that there will be survivors and you can kind of understand that, i think. nick robertson, thanks so much. if you are wondering how you can help the families of those missing, go to cnn.com/impact. there are many pieces on how the families deal with losing a loved one so unexpectedly. cnn.com/impact. coming up we will take an inside look at the pinger technology. our brian todd visited the very facility that makes the devices. what the pinger can and cannot do. also we're focusing on the search area as well. without any physical evidence, should authorities be looking in an entirely different region? stay with us. marge: you know, there's a more enjoyable way to get your fiber. try phillips fiber good gummies. they're delicious, and a good source of fiber to help support regularity. wife: mmmm husband: these are good! marge: the tasty side of fiber. from phillips. but add brand new belongings from nationwide insurance... ...and we'll replace destroyed or stolen items with brand-new versions. we take care of the heat, so you don't get burned. just another way we put members first, because we don't have shareholders. join the nation. ♪ nationwide is on your side ♪ >> bottom of the hour, this is cnn special live coverage of the disappearance of flight 370 and today a possible breakthrough. a ship using advanced u.s. technology has picked up a signal in the water not once but twice. these pings consistent with a plane's black box pinger. later for 13 minutes. importantly these sounds were distinct from one another as you would expect from two pingers, one each on the flight data as well as the cockpit voice recorders. >> what i would like to do before i say with certainty that it is the aircraft is one reacquire the signal. two, deploy the autonomous underwater unit and then switch out the sonar with a camera unit and take photographs of what would be the wreckage. we need to definitely reacquire the signal to confirm that it is the aircraft. >> back in malaysia, authorities confirm that flight 370 was never picked up by radar in neighboring indonesia. a source inside tells cnn the plane purposefully flew around indonesian air space. this is the only sound people want to hear. the so called pings. [ clicking sound ] >> sounds a bit like a metro gnome. if you find the pings you can find the plane. how does this pinger locater work? >> it's got very sophisticated capability. it can go down to about 20,000 feet below the surface of the ocean. it can detect the pinger from up to two miles away. it does have that sophistication and capability. it also has limitations. bad weather and stormy seas could obstruct the pings. consistently they said the manufacturers have told us it's most effective when you have a confirmed piece of wreckage already found therefore you can narrow down the search area. we don't have a piece of wreckage that was found so they put this in the water. it was considered a hail mary pass, a last ditch effort and low and behold it did find something over the weekend. now comes the hard part. they have got to go back over the area where they detected this. they have got to reacquire the signal. it's going to take parallel runs and perpendicular runs so they can home in on it, triangulate it. and the animation that you're looking at now, that's another device that they're going to deploy. that is blue fin 21 which is going to go down and take pictures and side scan sonar images of the area where they heard the pings and try to map out a debris field. these are the procedures coming up. >> and brian you said normally they start with debris and then they know where to look for the black box. has this worked before in this situation where there isn't debris and in a way they can hear the pinger but they're going in blind? >> it's not worked in this way before. to my knowledge and from what our discussions are with the manufacturers, this is unprecedented. the tow pinger locator has worked where major commercial airlines have had crashes in water but in those instances the search area was much smaller. they had a point to work with where they knew where the plane went down. this time they did not. one of those times was in 1999 in the atlantic ocean. the only time that the pinger locater has failed was in the air france of 2009. it did not detect the pinger there. the pinger came loose from the black box and may have been damaged so it does have a good track record. >> and i want to talk a little more about this. joining me now is jeff wise. he is an aviation analyst and we also have an air safety expert. if these pings are not coming from flight 370, what else could explain them? >> well, really it's anyone's guess and we will probably never know. there are a lot of things in the ocean that make a lot of nois. this is a very artificial sounding noise so it boggles the imagination that something natural could create it. but we just don't know, really what could cause a false positive. we do know that there have been numerous false positives so far. it is very much in up in the air. >> the science tries to avoid this, the 37.5 kilohertz is a frequency not heard in nature? >> user error might be the answer. as someone pointed out earlier on cnn, there is a lot of material and vessels down in the water in that part of the ocean. maybe somehow they are picking up one another. it's really hard to say. we don't know. it hasn't been analyzed yet what the other false positives were caused by. >> this process of evaluating the pings, can you explain why it takes so long, what all it involves, who all is listening to this? >> there is certainly numerous agencies that are all trying to listen to this at this point and it wouldn't surprise me if more aren't on the way. part of the reason why this takes so long is this is a non-directional signal. what that means is when it emanates the sound it goes 360 degrees in all directions. so that makes it more challenging to try to home in on the location as it were. if it were in -- coming from one specific direction, that might enable you to find it faster but it would be harder to find it in the first place. that's an important design feature. that's a good thing but it does take more time. we really are doing this backwards out of necessity. that we don't have a debris field where we're trying to pinpoint it. but rather we're casting a wide net and hoping to find it before the batteries go out. >> let's say a battery does go out, shawn. we just heard a few minutes ago from one expert who said they need to reacquire the signal. but i guess if the battery goes out is there enough information in what they have already been anyone to gather to help lead them to the right location if this is indeed from the airplane. >> that's a really challenging question. i think it will be based on the te ra terrain of the vehicle. if we have a really flat seabed, if we get lucky, they might be able to find it with sonar by mapping the ocean floor. however, if the terrain is really rough or rugged, that will make it extremely difficult to map such a small area and find such a small device. >> you can imagine with one of the autonomous underwater vehicles, that would be some sort of search. plus up next, we will give you the four reasons that chinese signals are from the missing plane and the six reasons to doubt it. those little things still get you. cialis tadalafil for daily use helps you be ready anytime the moment is right. cialis is also the only daily ed tablet approved to treat symptoms of bph, like needing to go frequently. tell your doctor about all your medical conditions and medicines, and ask if your heart is healthy enough for sex. do not take cialis if you take nitrates for chest pain, as it may cause an unsafe drop in blood pressure. do not drink alcohol in excess. side effects may include headache, upset stomach, delayed backache or muscle ache. to avoid long-term injury, get medical help right away for an erection lasting more than four hours. if you have any sudden decrease or loss in hearing or vision, or any allergic reactions like rash, hives, swelling of the lips, tongue or throat, or difficulty breathing or swallowing, stop taking cialis and get medical help right away. ask your doctor about cialis for daily use and a free 30-tablet trial. a seven day cruise to alaska or the caribbean from just $549. that's seven days to either marvel at mayan ruins... savor the very best local flavors... or sail in glistening glacier bay. with a cruise line voted best in alaska. a seven day cruise to alaska or the caribbean from just $549. call your travel agent or 1.888.book.now for this limited time offer. princess cruises, come back new. for this limited time offer. humans. even when we cross our "ts" and dot our "i's", we still run into problems. that's why liberty mutual insurance offers accident forgiveness with our auto policies. if you qualify, your rates won't go up due to your first accident. because making mistakes is only human, and so are we. we also offer new car replacement, so if you total your new car, we'll give you the money for a new one. call liberty mutual insurance at... and ask us all about our auto features, like guaranteed repairs, where if you get into an accident and use one of our certified repair shops, the repairs are guaranteed for life. so call... to talk with an insurance expert about everything that comes standard with our base auto policy. and if you switch, you could save up to $423. liberty mutual insurance -- responsibility. what's your policy? >> two ships in two spots heard potential pings 370 miles apart. are they hearing the same pinger or is one of the ships picking up something else perhaps? the signals that china's ship heard were picked up using an unconventional method. there are also good reasons to believe it. number one the frequency doesn't occur in nature. the frequency is 37.5 kilohertz and black box beacons are designed to be at that frequency. there were two sets of pulses heard a little more than a mile from each other. and number three you usually know a ping when you hear one because this is what the black boxes should be sending out, which sounds like a metronome. [ clicking sound ] >> and number four, they're in the right spot. the leader said over the weekend that revised analysis puts the focus more to the south of the search zone. >> we think it is now operating. >> now detractors have a lot to balance, too. and the echo, a british ship in the area. there are two reporters, the cockpit voice one and flight data recorder ch each has its own. experts say that the pings would not sync up. these are not ideal conditions and that is really an understatement. plus video shows them listening with ear buds, not headsets that would block out noise. number four this is fascinating. a spare pinger on the boat could have sent the signal. it's not clear why the crew had it but a black box manufacturer says if the pinger gets wet, it starts transmitting. number five, is the device mend for divers to hold by hand in shallow water. it is not meant for depths. and finally the underwater search started only recently so what are the odds? some could say that searchers cut a lucky break after one disappointment and false lead after another. next we are answering your questions including the possibility that the plane may have tried to land in the northern part of indonesia and whether the black box batteries could last longer in shallow water. plus the blade runner taking the stand accused of murder of his girlfriend and a memory from his childhood is raising eyebrows. cut! [bell rings] this...is jane. her long day on set starts with shoulder pain... ...and a choice take 6 tylenol in a day which is 2 aleve for... ...all day relief. hmm. [bell ring] "roll sound!" "action!" one of our favorite things to do is going to the dog park together. sometimes my copd makes it hard to breathe. so my doctor prescribed symbicort. it helps significantly improve my lung function starting within five minutes. symbicort doesn't replace a rescue inhaler for sudden symptoms. with symbicort, today i'm breathing better. come on, boy! [ female announcer ] symbicort is for copd, including chronic bronchitis and emphysema. it should not be taken more than twice a day. symbicort contains formoterol. medicines like formoterol increase the risk of death from asthma problems. symbicort may increase your risk of lung infections, osteoporosis, and some eye problems. tell your doctor if you have a heart condition or high blood pressure before taking it. 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[ male announcer ] if you can't afford your medication, astrazeneca may be able to help. dominique wilkins, are taking charge of their type 2 diabetes with non-insulin victoza. for a while, i took a pill to lower my blood sugar, but it didn't get me to my goal. so i asked my doctor about victoza. he said victoza works differently than pills, and comes in a pen. and the needle is thin. victoza is an injectable prescription medicine that may improve blood sugar in adults with type 2 diabetes when used with diet and exercise. it is not recommended as the first medication to treat diabetes and should not be used in people with type 1 diabetes or diabetic ketoacidosis. victoza has not been studied with mealtime insulin. victoza is not insulin. do not take victoza if you have a personal or family history of medullary thyroid cancer, multiple endocrine neoplasia syndrome type 2, or if you are allergic to victoza or any of its ingredients. symptoms of a serious allergic reaction may include swelling of face, lips, tongue or throat, fainting or dizziness, very rapid heartbeat, problems breathing or swallowing, severe rash or itching. tell your doctor if you get a lump or swelling in your neck. serious side effects may happen in people who take victoza including inflammation of the pancreas (pancreatitis) which may be fatal. stop taking victoza and call your doctor right away if you have signs of pancreatitis, such as severe pain that will not go away in your abdomen or from your abdomen to your back, with or without vomiting. tell your doctor about all the medicines you take and if you have any medical conditions. taking victoza with a sulfonylurea or insulin may cause low blood sugar. the most common side effects are nausea, diarrhea, and headache. some side effects can lead to dehydration, which may cause kidney problems. if your pill isn't giving you the control you need, ask your doctor about non-insulin victoza. it's covered by most health plans. >> welcome back. you have got questions about flight 370. we have the experts to help answer that. let me bring in analyst bruce wise and shawn air space safety expert for ohio state university. jeff, to you first, kevin asks, can the black boxes be removed and be thrown out of the aircraft? i mean, jeff, it sounds unlikely but is that possible? >> no. it's not possible using -- it's not possible the way the planes are built today. it has been suggested that maybe in the future, manufacturers should consider a system in which black boxes or some kind of recorder are ejected before a plane crashes that would aid in recovery but that's not how it's done now. >> certainly recovery of what happened if not immediately. that makes sense. our next question comes from tamara and she asks so we found more than one potential ping, how long should it take to get a sonar in the water? >> we don't have enough information to go ahead and put that sonar underwater. it's important to understand that that is a much more precise instrument and looking at a much closer area so we need to narrow the field down a little more. >> or else it's just a gigantic range trying to find it? right? >> exactly. you're not going to be able to cover thousands or hundreds of square miles by dragging this around. you will need to fine tune it by getting more data points. >> and question number three, what is the probability of hearing a cockpit voice pinger within range of the separate tone of the data recorder? we have been hearing two pings on some of these kind of audio recordings but not always. >> you know, i was trying to get my head around a way to characterize how incredibly unlikely it would be to find these pingers without having any wreckage on the surface to help narrow it down. if you imagine that i write down the name of a random town in the united states, anywhere in the united states, could be in alaska or rocky mountains or maine and you guess what the name of that town is? the chances are pretty slim. and that's what we're dealing with. if this doesn't pan out, we have got nothing. it is a daunting task. >> let's hope it is something as this -- and still to come, oscar pistorious offers a dramatic apology to the family. >> there hasn't been a moment since this tragedy happened that i haven't thought about the fami family. >> was it a murder, though? was it a deadly mistake instead? peaches has been found dead. she was just 25 years old and a friend of paris hilton. we have that next. so ally bank really has no hidden fees on savings accounts? that's right, no hidden fees. it's just that i'm worried about, you know, "hidden things." ok, why's that? well uhhh... surprise!!! um... well, it's true. at ally there are no hidden fees. not one. that's nice. no hidden fees, no worries. ally bank. your money needs an ally. >> back to our special coverage of flight 370 in just a moment. model and socialite peaches geldof has been found dead. she was just 25 years old. her death is sudden and unexplained. she had just posted a picture of herself in her mother's arms. her mother died of a drug overdose in september of 2000. her father writes in a statement that quote, we are beyond pain. what a beautiful child. in south africa, his voice so low that the judge asked him to speak up, oscar pistorious took the stand in his own defense. the paralympian is on trial for murder. he broke down and gave a tearful apologize to the camp family. >> i would like to apologize and say that there is not a moment and there hasn't been a moment since this tragedy happened that i haven't thought about the family. i wake up every morning. i can't imagine what i have caused you and your family. i was simply trying to protect riva. i can promise that when she went to bed that night she felt love. >> he then went on to describe parts of his childhood. >> i grew up in a family where my father wasn't around much so my mother had a pistol. and she would often get scared at night. >> under her bed and under her pillow, you know? >> what did you make of the testimony? >> i think he certainly struck the right tone. he came out of the gate with this apology. it did come across as heartfelt although my understanding in the courtroom is that reeva's family is stone faced. i think what we heard today is the beginnings of this foundation that he didn't intend to kill her and that his mistake was a reasonable one because, you know, he was the victim of crime in south africa. he was not on his prosthetic legs, but on his stumps, making him feel more vulnerable. he was in a state of terror and he thought that reeva was in bed. we heard a lot about that. i thought it was a good day for the defense now. remember, this prosecutor is known as being a very good cross examiner. so i think the real fireworks will happen tomorrow. >> still to come, one of the questions is was pistorious on his stumps or standing on his prosthetic limbs. he testified that he can't balance himself on his stumps. that he takes them off at night. how key was this testimony to his defense? >> i think it was certainly key. we know that oscar pistorious has had this disability since he was a year old. and he has also testified that at night he takes his prosthetics off, puts them next to the bed and in the morning it's the first thing that he does is put them back on. the fact that he would be facing, in his mind, an intru r intruder, without the aid of the prosthetic limbs he has worn his entire life, he would feel vulnerable and his actions were reasonable. that's very key in this case. if the prosecution can't prove premedication that he intended to kill her, they still have this theory of culpable negligence. >> and we will be talking to you tomorrow as well about this. thank you. the special coverage of flight 370 starts now. >> hello everyone. thanks so much for joining me. it's being called an amazing stroke of luck. the u.s. navy's pinger locater has detected pinger signals consistent with the black box. this first detected a series of pings that lasted approximately two hours and 20 minutes, lost the signal, turned around and again, the pinger picked up another signal. both sounds were different which is what we would expect from two separate pingers. on the flight data reporter and the other from the cockpit voice recorder but the head of the search task force says until they actually have evidence they can't be sure if indeed it is the plane. >> i need to be honest with you. it could take some days before the information is available to establish whether these detections can be confirmed as being from mh-370. in very deep oceanianic water, nothing happens fast. >> when he says deep he means waters some three miles deep. the blue fin is prepared to scour the ocean floor. as the search continues so does speculation as to what actually happened inside the cockpit. we are being told that the plane may have steered a curious course around indonesian air space, a route that suggests an intend to avoid radar detection. live once again for us in australia. so now that the ocean shield has detected these signals, what's next and how time consuming will the whole process be? >> what's next is there are still two simultaneous things happening. planes are taking off just hours from now from this air base where i'm standing. so far they have come up empty, even in the area where they detected the pings. the ocean shield literally racing against time, trying to listen and relocate those signals, the two separate signals that they found over the weekend. one for about two hours, the other for about 15 minutes. if they can find them they can zero in on an area where they believe that wreckage might be and that would be remarkable according to a man who is leading the team of people who are operating the equipment. take a listen. >> if we can locate this wreckage and salvage the important components, it's just going to be a phenomenal event because i don't think in the history of aircraft searches we have ever started with such inexact information to identify where the aircraft went in the water. it certainly would be a miracle. if this does turn out to be the aircraft location and certainly a tremendous effort by that international team out of kuala lumpur. >> strong language and even stronger warning that we need to be cautious. no physical evidence and more than a month in and they're listening for pings from black boxes that could literally die any moment. >> what happens if the ocean shield can't pick up another signal? do they just move on? >> they don't move on from this area and here's why. because they were able to detect two separate signals, that obviously leads them to believe that this, compiled with satellite data as well as fuel consumption they think they may be on to something. if they don't detect another signal it could just be because the batteries died. the next step would be deploying the underwater drone. that is is a much more time consuming process. so they are really hoping that they can zero in on the signal and see if they can box in a specific area and get down there and scan the ocean floor and see what they can find. >> all right. thanks so much. bob is joining us now. office of accident investigation. so guys i want to ask you both this. it sounds really promising. this is the biggest lead yet. and these frequencies, they are pretty specific, right? >> that's right. i think we're seeing a good development is that now we're seeing a professional level of caution of jumping to conclusions, something we have not seen consistently. but it appears this is about the best sign of hope that we have had yet. it all fits the best calculation of the fuel consumption of the airplane and the location as recalculated from the pings and now we have this very high-tech u.s. equipment apparently with some level of assurance locating this ping. so, it's probably the highest hopes we have had in several days. at the same time, all of the speakers here are showing a good measure of caution. >> i want to ask you the same question. do you still feel pretty good about this? and i also want to throw out if it's not the pinger, what could it be? >> i am very optimistic. they are searching in this place as the result of a lot of calculation and recalculation and analysis and reanalysis based on the data that they had. so it's no coincidence that they are in this very particular part of the ocean. also you have got people who are trained to use this equipment. it's top of the line. they are very experienced at what they're doing. they have got not one but two signals now. that is very, very encouraging. >> you guys both sound very optimistic. here is what a lot of us want to know. if indeed this is a home run and the boxes are there, at what point could we actually see wreckage? go ahead, steve. >> i think that, you know, they will deploy the scanning sonar and the other equipment, camera equipment, i think it's -- i'm not an expert to speculate on that. it could be a matter of days. i still think this search area is enormous as compared to air france, this is is a way more difficult -- a way more difficult challenge. >> rob, your thoughts? >> you know, to tow the pinger locator across this area takes around seven hours to cross the hour and do a three hour turn at the end. so you're going to get a couple of sweeps cleared today. hopefully today they will complete the third and fourth sweeps. that will give us a good indication of what is on bottom. if the pinger has gone silent they will have to launch the auv. that will take many hours to conduct the search and more hours to download and process the data. >> in more detail, explain uav. >> the autonomous underwater vehicle. this one is the blue fin 21. it's launched off the ship, swims down to the sea floor. it can be fitted with a range of packages. the first package is side scan sonar which uses acoustics to provide imagery of the sea floor and to try and find any wreckage. when it returns to the surface, that data is analyzed. if they see wreckage they will swap out the package and put a camera package on and then they will go down and photograph. >> and how quickly could we see those photographs? is that realtime or is that a process as well? >> it's a process as well. the auv is not tethered at all. it has to be recharged and downloaded and analyzed. when you're looking at data you're looking at something that occurred previously, usually the day before. >> thanks so much, guys. >> thank you. >> coming up, the challenges in the indian ocean. now a major cyclone blowing through the area. will we ever find the debris? plus a source telling cnn that the plane actually skirted indonesian air space. we're asking the pilot to explain the new flight path next. it's red lobster's lobsterfest! all promotions! the year's largest selection of lobster entrees, like lobster lover's dream. hurry in and sea food differently. go to red lobster.com for ten dollars off with purchase of two lobsterfest entrees. 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[ male announcer ] it's how edward jones makes sense of investing. ♪ >> welcome back to our special coverage of the missing airliner. a month since that airplane vanished, we have this clue now involving a turn around in indonesia. we learned about this yesterday. tom foreman is joining us now from new york. tom, i want to start with you. what about this jog. >> we talked about this idea physically before. the idea is that the plane came up here, made this turn, came down over the strait. now, let's go back through. if the plane were simply heading across malaysia as we believe it was, then we would naturally expect it to go right down over here but it took a turn here. so this is their first hint that something unusual is happening. if it goes past that point from this turn out here, again, you find yourself saying it would keep going this way naturally, but instead another turn occurred and this turn took it right around the tip of sumatra up here. this area right there is where the airport is. would it be just beyond the control area of that airport? yes. whether it's beyond their radar sweep, technically it probably shouldn't be but they say they didn't see anything. obviously they didn't see it. but that's what makes them believe this. the idea that it made these unusual turns here. and if it made the unusual turns, why. because if it were disabled, if the people couldn't fly it, why would it keep making dramatic movements? >> can you add to that? i'm wondering is it possible they could have been hipoxic? >> tom is saying that is one of the theories. what do you think? >> no, this is not behavior of hypoxia. whether the pilot is flying with a gun to himself or somebody else, somebody is flying the plane. >> whoever was flying, might they have also been concerned about being shot down? >> i suppose they might but here is the one thing i have a question about and maybe you have theories about this. if the whole point is to avoid contact, why would you keep hugging along the coast. why don't you go out here? if the whole idea is to go where nobody was, there is a lot more emptiness up here than here. these are the clues that make you go over and over. >> kit, jump in. >> i don't think the object could be to avoid detection but they were way too close. they could have easily been detected where they were. they could simply trying not to be threatening. if they are not turning towards the country. did they enter your air space? no. if you turn towards them then you might do something. if you're trying to avoid a threat you can fly around and they could go other places. >> and as we all know, if an aircraft flies into an air space and we don't know about that individual, we learn from 9/11 you have to respond immediately. there is no waiting and watching. >> not here any more. these are smaller countries with lower resources. they're used to airplanes with transponders and probably haven't been attacked in a really long time. odds are that they are snoozy at midnight. >> tom, can i ask one quick question? in this day and time with the state of the world is any 777 flying where it doesn't belong not automatically a threat? i think everybody in the world would say this is some kind of threat because it doesn't belong here. >> this time the primary radar image they have no idea what the size of the airplane is. it's a blip on their map and not headed towards them. >> and speed. >> it's not going fighter speed but airliner speed. not viewed as a threat. >> tom, anything else? >> i think that this theory, the problem with the whole idea that this was somehow done here to avoid indonesian air space, maybe. but there are so many what ifs. from the beginning, the only thing we have been able to say really with absolute certainty is that the plane took off and up here it disappeared and everything else becomes a string of conjecture of why and what if. >> the title of this segment, why and what if. kit, stay with me. we will talk about the challenges of the indian ocean. we will explain how all of this is impacting the search. chinese families are holding a pretty emotional vigil. we will take you live to beijing. those little things still get you. cialis tadalafil for daily use helps you be ready anytime the moment is right. cialis is also the only daily ed tablet approved to treat symptoms of bph, like needing to go frequently. tell your doctor about all your medical conditions and medicines, and ask if your heart is healthy enough for sex. do not take cialis if you take nitrates for chest pain, as it may cause an unsafe drop in blood pressure. do not drink alcohol in excess. side effects may include headache, upset stomach, delayed backache or muscle ache. to avoid long-term injury, get medical help right away for an erection lasting more than four hours. if you have any sudden decrease or loss in hearing or vision, or any allergic reactions like rash, hives, swelling of the lips, tongue or throat, or difficulty breathing or swallowing, stop taking cialis and get medical help right away. ask your doctor about cialis for daily use and a free 30-tablet trial. how much money do you think you'll need when you retire? 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[ woman ] got me to 70 years old. i'm going to have to rethink this thing. it's hard to imagine how much we'll need for a retirement that could last 30 years or more. so maybe we need to approach things differently, if we want to be ready for a longer retirement. ♪ all eyes are focused on the area where an australian naval ship picked up what could be signs from the missing malaysia flight 370. the sounds heard in part of the indian ocean, we're talking about 15,000 feet deep. what's more? there was a cyclone in that same area not long ago. chad is here to talk about the challenges these searchers face. where do you want to begin? maybe with the cyclone? top speed? talk, what could have happened if anything was in that spot. >> we talked about this three weeks ago. it's no big deal. it's thousands of miles away. guess what? our search area is now thousands of miles from where it was. and this 160 miles her hour could have been a super typhoon. typhoon, cyclone, hurricane, all the same thing. i wish we could call it the same thing but americans couldn't get celsius back in the 70s. it's the same storm. >> the boxes, they hit, they drop, that's it. when we fautalk about debris an wreckage and you have got that type of current coming through, it's possible that we won't find anything within that area, yes? >> at this point in time, that was 160 mile per hour storm. there were winds because of going in the opposite direction, winds blowing stuff that way and that way and this continues right on down to our ping location. it was not as big but it was a category 5 hurricane. talk about this being a washing machine and i think ashleigh said it earlier. it was a blender. anything that had the potential to float was going to get filled up with water and sink. it isn't as bad now, look, this is where the ping was and this is our picture we were seeing. >> i am looking for the scream somewhere within that. >> exactly. this is kind of what's going on in the general area but only two to three miles per hour. things aren't getting blown around now but they are scattered. >> i was trying to look at the map and your fancy movement took it. i was trying to figure out where years from now debris could turn up on beaches. >> certainly. >> where would the shoreline you have got perth. i'm wondering where if possible down the road something could wash ashore? >> let's say there is debris there. there is is a south indian gyre that brings the current up something like this almost like our gulf stream that takes stuff off the shore. it goes up this way and up around this way. this debris could be in this gyre for years and years and years and even end up back towards malaysia where we think the plane came from, a big left hand turn. there is is a couple of showerers ashowerer s and fronts but winds are only 10 to 15 miles per hour. they can handle that. >> we are taking you in the water. now we are going to dissect the black box. we are going to show you everything from its pinger to what's on the inside, to how it works. plus malaysian airlines getting a lot of criticism for the way it's handling the missing plane. i will talk to an american crisis consultant. he advised airline leaders who have been blasted by frustrated families on a daily basis. peoi go to angie's listt for all kinds of reasons. to gauge whether or not the projects will be done in a timely fashion and within budget. angie's list members can tell you which provider is the best in town. you'll find reviews on everything from home repair to healthcare. now that we're expecting, i like the fact i can go onto angie's list and look for pediatricians. the service providers that i've found on angie's list actually have blown me away. find out why more than two million members count on angie's list. angie's list -- reviews you can trust. welcome back to the top of the hour and special coverage of missing flight 370. search crews are working around the clock trying to find the source of two mysterious pings. the question is are they from the missing plane. these signals are on the same unique frequency as pings emitted from black box recorders and both are unique which is what we would expect. one on the flight data recorder and the other from the cockpit voice recorder. >> what i would like to do before i say with certainty that it is the aircraft is one reacquire the signal. two deploy the autonomous underwater vehicle to map the debris field and three, switch out that sonar with a camera unit to take photographs. but certainly we're jumping to conclusions here. we need to definitely reacquire the signal to confirm that it is the aircraft. >> it is day 31 since the plane vanished. the batteries may die at any moment. this fact is only adding to the urgency. and high-tech devices will continue to comb the sea looking for any sign of this aircraft. now it's been an ongoing issue, flight 370 families say they learn the latest on the search after news outlets do. >> have heard the -- every second and the signals lasted for one minute -- one and a half minutes. >> now my next guest will speak with flight 370 families but he has helped them behind the scenes. he actually advised malaysia air in the days after the plane vanished spending ten days in the country. spend ten years handling marge response from american airlines. how difficult is it for a company to control information when there is such intense scrutiny and media coverage? all of this happened so fast and as you well know, families have not been happy with the way information has been disseminated. >> good afternoon. it's very challenging for the airline and the government actually to control the amount of information and how its coming out. in the age of social media with twitter and facebook and one of the briefings i saw last night on, i believe actually on cnn, angus was talking about having reporters on the ships. i'm not surprised to hear that families are hearing it from the media often times before they hear from the airline themselves. >> you were right there. at least i was reading that you said from what you saw, as you know from the very beginning, families have not been happy with the way the airline has handled all of the information. they get a piece of information that ends up being wrong or they are told one thing and it gets changed to another and it's constant back and forth. how do you justify what they're doing is a good job and do you think they're getting better? >> the reason i think that they were doing a good job is because one, the number of people that they have deployed to respond to families, they had malaysian airline employees sent to family assistance centers and beijing. they established a family support center that was operational 24 hours a day. they would reach out through that call center and would take calls from family members as they came in. but understanding that the families were upset, i could certainly see their perspective as well. they have suffered through a traumatic event and not having any kind of debris or wreckage to understand how their loved ones are doing, they are frustrated and angry. but the airline can only provide information that they know to be factual at the time they give it. and that information is coming from individuals outside of the airline like the malaysian government, the australian government and others. >> so when you were there in the control center, you got a vibe from the entire environment, how did you advise these leaders? what did you tell these guys within the airlines? >> we would share with them information such as how often they should brief families, particularly when they had new information that they could say is factual to not hide any information, to share everything up front, to work with families on a daily basis, establish family assistance centers so that family members would feel comfortable. they were housed, they were fed, they had grief counselors if they wanted access to a grief counselor and medical attention as well. so we were trying to make sure that those logistical items were taken care of so that the families would be comfortable. >> i know you may be headed to perth soon. ken jenkins. >> thank you. >> families are holding a vigil to mark the one month anniversary since the plane disappeared. david, one month, this must be an enormously difficult milestone for these families. >> it is extremely difficult milestone, karen. we have hardly seen a dry eye in the room in the hotel behind us. they lit candles through the night and praying, holding vigil for the family members of theirs that were on board flight mh 370, some of them still telling me they have hope but mostly they are exhausted and they are waiting for some kind of concrete information. all the leads that we have been talking about through the last few days, especially in the last 24 hours they don't want to necessarily believe that this is proof that this plane went down. they want some kind of physical evidence and through the night here, over the hours, they are mirroring the flight that happened a month ago at different times during the night they are remembering when the transponder went off, when maybe the plane changed direction. they are really tracking the flight and yes, it's a very, very difficult time. >> dave, we will stay in close touch. thank you so much. >> and you are heard a lot of talk about the black box pingers on them. we have actually got black box in studio. ken is going to explain exactly how this worked from the outside and inside. that's coming up next. plus a lot of people tweeting questions about the latest development. we have our experts on hand to answer those questions ranging from taking another look at satellite images to an actual moving debris field. [ chainsaw buzzing ] humans. sometimes, life trips us up. sometimes, we trip ourselves up. and although the mistakes may seem to just keep coming at you, so do the solutions. like multi-policy discounts from liberty mutual insurance. save up to 10% just for combining your auto and home insurance. call liberty mutual insurance at... to speak with an insurance expert and ask about all the personalized savings available for when you get married, move into a new house, or add a car to your policy. personalized coverage and savings -- all the things humans need to make our world a little less imperfect. call... and ask about all the ways you could save. liberty mutual insurance -- responsibility. what's your policy? >> welcome back to our special live coverage. finding the wreckage of missing flight 370 would only answer some questions. but for more answers, investigators need the black boxes. they and they are really going into the details of why this is so important. i think we have set the stage for that. but a lot of people don't understand what is in here and how far we have come, actually, right, from a lot of the older black boxes. >> the old days it was edged on metal tape. >> the foil recorders. we were talking about that. >> and then mylar, plastic. now it's basically a thumb drive in a stainless steel that is designed to protect it from fire, temperatures, water, as long as the capsule with the memory in it, they can recover the data. >> how big do you think? how big of a flash memory? >> looking at the pictures of it. as a pilot it operates behind the scenes for us, pretty much always on from the time you start your checklist until you park the plane so it's always there. in this case the drive is pretty large. it takes about half of it on one side. and then controller boards and then a computer that has software. what it generates you can't read directly. you have to take it into a program. >> that's inside. we will go back inside in a minute. this is the locator beacon. >> they are 30 days guaranteed. and there is is a 90 day model that most airlines have not chosen to implement yet. >> why is that? >> i don't know. it may be a cost item. they don't just have one, they have back ups for every airplane so airlines are buying thousands of these at a time. but there is is a stronger battery and a few airlines have chosen to take it. in this case it looks like we found it. there is also other information coming in. there is a box near the cockpit that gathers all of the information up to 146,000 data points go into it. that's also, there is another recorder that we don't talk about much that is used for tracking the flights and checking pilot performance and that's a removable recorder. if this airplane is in tact that may survive. >> there are obviously two very important things. there is the data and the voice recorder. >> two boxes. >> another box. >> two separate boxes. data is our best hope here, right? explain why. >> well, the -- what the plane is doing if we have the flight data recorder we will know how fast it went, how high it went, we will know all about the plane. we will have everything we need to know what the plane did. the trouble is the motivation for why it did whatever it did is contained in the voice recorder and the voice recorder is only good for two hours. this flight went many hours past that. >> so it records over? it loops. >> it's a loop tape, it works the same way. the event when it happened, when he turned around, descended down and flew south, that information is not going to be recorded. unless someone is talking towards the end we will not know the motivation. we will know exactly what the plane did but not why it did it. >> so when it comes down to it, we want the data box? >> the voice one will be recorded over and unless he's fau talking on the way down we won't know why he did it. >> and that's what everybody wants to know. >> the motivation. >> yes. we are answering your questions about the missing flight. now that the probably crash area is found, have the archive satellite images from the beginning been reexamined? 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[ male announcer ] in a clinical study, over 80% of treated men had their t levels restored to normal. talk to your doctor about all your symptoms. get the blood tests. change your number. turn it up. androgel 1.62%. >> so you've got a lot of questions and we have the experts to help answer them. rob mccallum and steve ross is back with us. rob, let's go ahead and start with you. sammy writes in and says where is the debris. why don't they see any pieces of that plane? >> you know, it could be for a couple of reasons. the first is that there may not be a lot of debris. the aircraft might not have broken up in a big way on the surface. there might not have been a lot of debris generated. it's a very, very big ocean out there. and you know, it was several days after the accident that searchers first got to this area. it could simply have drifted away. >> steve, here's one for you. actually i have another question and follow up. now that the probably crash area is found, . >> i really don't think so. we had images that have been completely discounted and remember on day one or two they had these chinese satellite images, which analysts concluded that the things on the images were just way too big to be the type of debris that would see small, noting objects. so i think the investigators would do as this questioner suggested if there were any reason to but i'm not aware of one at this point. >> okay. this next question is for you, rob. can the plane be partially afloat underwater with the black boxes inside and moving, explaining the two audio events 300 miles apart? you were sort of going there about how in tact that aircraft could be. >> no, i don't think the aircraft could float in the water. once it floats with water, it's got very weighty components to it, the landing gear and the engines, of course. so it's not going to remain afloat in the water column. it's going to be negatively buoyant and go to the bottom. >> another viewers asked, flying as high and slow as possible to save fuel, would it have been possible to reach australia with the original fuel quantity? what do you think, steve? >> well, we have to calculate that. actually, you don't want to fly as slow as possible. it doesn't get better mileage at a slow speed. the airplane is designed for one person, which is to be highly fuel efficient at a fairly high speed at a high altitude. now, you would have to look at the fuel load and the power settings to calculate as to whether it could have reached australia. i think that this inmarsat data with the pings is some of the best data that we've had in this investigation and that would show that it did not go to australia. >> we have time for one more question. that does it for viewers for you guys at this hour but maybe you can both jump in on this. chad and i were talking about the fact that the cyclone came through this area and the speed of the current. what are your thoughts about that impacting finding something? you know, a piece of that aircraft? rob? >> it certainly could have had an impact. you know, if you had a piece of debris which is partially afloat, once you put a cyclone through there, a hurricane through there, you're getting a lot of wave wash and action and eventually something is going to fill up with water and lose buoyancy and then sink and then after the storm, it's gone. >> thank you both so much. much more coverage coming up. plus, a big day in the blade runner murder trial. oscar pistorius immediately apologizes and then reveals something about his childhood that has a lot of people talking. you're going to hear his testimony, coming up. in retirement, will you outlive your money? uhhh. no, that can't happen. that's the thing, you don't know how long it has to last. everyone has retirement questions. so ameriprise created the exclusive.. confident retirement approach. now you and your ameripise advisor can get the real answers you need. well, knowing gives you confidence. start building your confident retirement today. a seven day cruise to alaska or the caribbean from just $549. that's seven days to either marvel at mayan ruins... savor the very best local flavors... or sail in glistening glacier bay. with a cruise line voted best in alaska. a seven day cruise to alaska or the caribbean from just $549. call your travel agent or 1.888.book.now for this limited time offer. princess cruises, come back new. all right. from 68 to 2, the ncaa basketball tournament final is tonight with a matchup that features two basketball powerhouses, of course. 2011 and 2012 champions will face off tonight for this year's title. number eight seed kentucky features eight freshmen. coming off a win of the tournament top-seeded team. tipoff tonight at 9:10 eastern. we will be back in 70 seconds. put it on my capital one i earn unlimited double miles. hey, you're not the charles barkley? 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(all) great! i love logistics. oscar pistorius took the stand for the first time in his own defense today in south africa. the parolympian is being charged with murdering reeva steenkamp. his voice was so low at times that the judge asked him to speak up. he began a tearful apology, though, to steenkamp's family. >> i'd like to apologize and say that these low moments and there hasn't been a moment since this tragedy happened that i haven't thought about your family. i wake up every morning and you're the first people that i think of, the first people i pray for. i can't mention the pain and the sorrow and the emptiness that i have caused you and your family. i was simply trying to protect reeva. >> pistorius opted not to appear on camera while he was on the stand. he went on to describe parts of his childhood, detailing how his mother slept with a pistol underneath her pillow for protection. >> i have terrible nightmares about -- about things that happened that night when i wake up and i can smell -- i can smell blood and i wake up to being terrified. if i hear a noise, i wake up just in a complete state of terror. um, to a point that i'd rather not sleep than fall asleep and wake up like that. >> pistorius spent just over 90 minutes on the stand. his lawyers asked to end earlier because the 27-year-old was exhausted. well, he wasn't the tallest but of all of the actors who grew up in front of the camera, mickey rooney may have been the biggest. >> ain't that the truth? >> mickey rooney died sunday at the age of 93. his death confirmed by the l.a. county coroner. mickey danced, acted, and married eight times, by the way, and he worked for 90 years, give or take a decade or two when his popularity waned a bit. but he was still working and still irreplaceable. rooney was 93. thanks for watching, everyone. "the lead" with jake tapper starts right now. it's being called the most promising lead yet. a signal perhaps emanating from flight 370's black boxes but the big question is will the ship be able to relocate the signal and is it the missing plane? i'm jake tapper. this is "the lead." the world lead. a ship picks up a signal in the water not once but twice and now the search takes on a new urgency because the pinger batteries were not even expected to last this long. and what about the chinese ship, the one that over the weekend supposedly detected signals in the