Obsession. Im talk to the son of one of the passengers. Well talk to two friends of the pilot. They say the man they knew would never deliberately crash a plane. Our bill story is of course flight 370. We are covering every angle with cnn reporters all over the globe. Sara sidner in kuala lumpur, David Mckenzie in beijing and Richard Quest with me. Dramatic developments that happened during our show last night where the search moved suddenly at least 700 miles north. Weve got this photograph from new Zealand Air Force from a plane, not a satellite. What is the significance of this picture potentially . Reporter well, its a very promising lead. But at this point we dont know if its actually debris from the plane. It is a floating object in the water. You could kind of see its rectangular in shape. And the plane that spotted it was actually a p 3 orion from new zealand. The lieutenant that saw it gave some brief comments as soon as he landed here. Take a listen. Yes, it sounds like were getting into an area of interest. Obviously we dont know if these are associated with the aircraft yet but it certainly looks like we are seeing a lot more debris and just general flotsam in the water. We could be on to something here. Reporter now, it has to be said there are at least five different objects sighted yesterday. One turned out to be a fishing buoy. We wont know what it is until a ship gets out there and physically takes a look at this object. There is one chinese ship in the search area right now. Another five are expected to get there later this evening, piers. Thank you very much indeed. Sara sidner is in kuala lumpur. Sara, a continued focus on the pilots of flight 370. What can we learn now about this aspect of the investigation . Reporter its interesting. Investigators have to do their jobs, of course. They have to look into the pilot. They have to look into the passengers. They have to look into the mechanical records of the plane. So theyre busy doing just that. Looking through, for example, the simulator. Seeing if that tells them anything. The fbi has been involved in looking at it. But its interesting to note that behind the scenes every now and then a source will come forward and say the pilot, look at the pilot. There may be something sinister there. But in front of the cameras, and on the record, what were hearing is a lot of praise for this man. People are calling him a gentleman, calling him someone who was excited about aviation. Let me let you listen to one of the people who helped build his simulator, the simulator which he apparently seemed to really really enjoy. He loved it as if it was a game. I couldnt believe that the man that had passion for aviation like that that wanted to build, took the extra mile to build Something Like that, would do something stupid or like sinister. Reporter this is what weve been hearing time and again from people who have come forward who will stand up and talk on his behalf. We do know that all this talk about some sort of sinister action on his part is killing the family. A quote from the sister, and of course his wife, his son, all of them having a very difficult time with this, piers. Its incredibly difficult. And also important i think to reiterate that at the moment there is nothing that innat incriminates either of the pilots in any plan to do something sinister whatsoever. Reporter thats absolutely true. Theres been a lot of talk about exactly how they have been looked at from the perspective of the airline and whether or not they were fit, for example, to fly. We heard from Malaysian Airlines yesterday. They basically said look, they have a test every year, a yearly physical if you will. In that physical theyre also asked psychological questions. So yes, indeed they are given what of a psychological test by the doctors who are doing their yearly physical. So you can only go so far with these things, but at least theyre able to talk to someone if they want to. We have not been hearing from other people who work for Malaysian Airlines. Lately its been quite difficult actually for us to get information from Malaysian Airlines. Weve contacted them several times. They were very, very fast in the beginning. Now their responses are starting to slow down quite a bit. Theres a lot of media, as you might imagine, piers. You just talked about it yourself. The world is watching this. And everybody just wants to note answer to one thing. And time and again the authorities here have said, we know the one thing that the families want answers to, we dont have. We cannot so far find this plane. They are hoping that this debris that you just heard atika talk about that is off the waters of perth has something to do with this plane. Because frankly, these families are exhausted. I mean, exhausted emotionally and physically. And they just want some proof as to where their loved ones went. Sara sidner, thank you for your continued excellent work. David mckenzie in beijing, more protests today by families of these passengers and crew on board this missing plane. Understandably. Three weeks now and they still just have no closure. What can you tell me about what is going on there with these families . Reporter well piers, three weeks. And three weeks to the hour in fact. And we had this confirmation that the plane had vanished many since that time, the family members have been in this terrible situation of leads, leads going away, wanting to know information, and then getting that information. Now it appears theyve had enough. In a briefing with malaysian authorities, one man stood up and said, weve got your information. Youre not giving us even the simplest of answers back. And so everyone walked out. Literally a very embarrassing situation of the malaysian authorities giving a briefing to nobody. Now they say some family members want to go to kuala lumpur to rachet it up and give pressure on the authorities. Certainly not everyone is united in these hundreds of family members, but there is a portion of them that are very angry and very agitated and want answers, answers that weve all been saying they cannot be given right now, piers. David mckenzie, thank you very much, again excellent work from you all through this. I want to bring in cnns Richard Quest. Richard, here we are. I remember three weeks ago, i recorded the show that day. I went home. I got a late call. Came back to the office. We within the live for the hour. We had no idea what was happening. But the idea that three weeks later we would still not have any real idea what has happened to this plane would have been completely ridiculous then. I would have said that you were mad if you had said, richard, in three weeks time they will not only will they not have found the plane, but they will now be looking 2,000 miles in the absolute opposite direction from the way the plane was going. I would starkraving mad. This has been unprecedented. It is unique. The depth and lack of material and data and anything to go on is extraordinary. And thats why i think we have to be a lot more understanding, not the families, obviously. They are griefstricken. But those of us who can take one step back, piers, i think we have to be a lot more understanding of what the investigation is doing and how its at the edge of technology. Obviously last night we were live on air. Suddenly this dramatic development, a new report saying they had new Data Analysis had come back. As a result, moving the whole search nearly 700 miles northeast. People are saying this is ridiculous. Why were they in the wrong place. But its a very complex, difficult investigation, isnt it . Right. Sir, what do you do when the facts change . I chained my mind. And thats exactly what theyve done here. The facts have changed. They can no longer support what they believe. But this is another thing you have to give a certain amount of credit tochlt they havent suddenly said we were wrong going in the southern corridor. They still maintain theyre right in the southern corridor. Theyve just got the wrong part of it. I say just. They didnt waste time searching down there this week. They knew no better, there was nothing else to go on. Now weve had time to think about some other aspects of the developments overnight. Particul particularly the speed of the plane. What are you reading into that how that may change the construct of what happened here . Theres a strong argument or an argument that would say because of what we now know does it move back towards mechanical aware from nefarious. I dont think you can say that one way or the other. I think both options are on the table and youre best to take a middle line on it. The change or the higher speed was at the early part of the flight over the South China Sea and the straight of malacca. We still do not know the turn, we dont know if it wiggled around indonesia, we dont know anything really about that. And all we now know is that it didnt fly as far because of what happened at the beginning. Let me ask you something, richard. As a result of this, can we assume at the very least Going Forward that no plane will ever be able to just disappear again like this . In other words, are the airlines all getting together and saying this is clearly ridiculous what has happened here. Desperate for these families. Its made the airline and malaysia look incompetent and so on and so on. Is it all going to change . Yes. I can answer that. I will be at the annual meeting of airlines in june which is in dojar this year. Ive spoken to airline ceos who privately say yeah, but the problem is, what do we put on the plane . Whats the cost of streaming the data . What does iko require us . All these sort of issues. But theres no doubt in my mind, in five years time you and i need to talk again, and im telling you they will have changed the rules. There has to be constant vigilance. They have to know where plane is at all times. Finally, the significance of these pictures today, were not waiting four days for satellite images thousands of miles up. Were actually looking at images taken biplanes over a scene. Thats the significance. And the chinese ship is there tonight. It is already starting to look. One point to note. Interesting diplomatic issue going on here. The australians have already sent a diplomatic note according to reports to all the countries involved. Just reminding them that any debris or objects picked up have to be returned to Western Australia where the decision will be made what to do. Because its in their jurisdiction. So therefore they will have that responsibility legally, right . Malaysia has given primacy in the area to Western Australia. So if anybody thinks the chinese or anybody else thinks theyre going to do a bit of their own investigation, to declare what it was, the australians have reminded them they are treaty bound to take it to Western Australia. Richard quest, great to see you. Good to see you, sir. When we come back, the anguish of the families. Ill ask a man whose mother was on the plane if he thinks hes any closer tonight to getting the answers he need as we wait for word on those objects spotted in the search zone. 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 bentastefree andr, dissolves completely. And unlike other fibers, youll only know youre taking fiber by the way Good Digestive Health makes you look and feel. Benefiber. Clearly healthy. I like it. Must see. I found a great new listing. Little busy here. I love this neighborhood. Nice. Uh huh. Its the agent. They accepted. Shut up [ laughs ] they accepted. Owww. [ male announcer ] that moment when it all comes together. Thats your moment of trulia. But, please dont try this at home. Because you simply cant do this at home. Go and smell the roses breaking news. Daylight off australias west coast. At any moment they could pick up object that is may tell us what happened to flight 370. Its been an agonizing three weeks for the family of the 239 people on board the plane. Steve wangs mother was one of the passengers. I spoke to him in the week and hes back with me now. Thank you so much for joining me again. My continued condolences to you and all the families for this just torment youve been going through. Let me ask you straight away, what is your view three weeks on now about the way that you and the other families have been treated by the malaysian authoritie authorities . Well r, for the three weeks they havent given us any useful information. All the information we got we got it earlier from the tv. So we dont know why someone always wants to tell us the latest story, the latest news but they havent done anything. For the crash, something we care about they always give us the answer that oh, i cannot explain it. I will check it later or Something Like, i cant comment or Something Like that. Theyve shown no sincerity to all the family members. Obviously last night, steve, the whole investigation, the whole search moved dramatically about 700 miles further north. What did you feel when you heard that news . Did you feel like they were wasting their time or do you think that such a complicated investigation that this is bound to happen . Well, i used to say that it is just a theory. I have already said that it is based on the speed but the speed can change. But however, i think the malaysian government thinks thought was correct. I dont know what they can explain now. I mean for you and the families to be told for the last three weeks that they think the search area is in a certain place and then to see it move so dramatically, do you feel hopeful they may have got it right this time . Or are you now at the stage where you just dont know what to believe . Well, i think theyre maybe just 1 of the possibility that they will be alive. But i do believe that there is still hope. And do you believe, steve, that the search area now from what youve been seeing on television and what you may have been hearing, do you think they may finally be in the right plac place . I dont know. I think maybe yes, maybe not. But if nothings found i think it might change again. And steve, tell me this. On a human level, how are you coping with this . This is your mother. To the world this is an extraordinary mystery story. But for you, its very real and very painful. Your mother is on that plane somewhere. What have you been going through . Describe it to me. Well, it is hard to say. Sad and angry and anxious. I cant describe it. Its so complicated. I cant even imagine what its like for any of you families. And the fact that youve had so much wrong information must make it 100 times worse. Steve, its great that youve come back on the show. Its important that people hear from the families. Im very grateful to you. I wish you all the very best. I, like you, will cling to any tiny bit of hope as long as there is hope. I will say a prayer for you again tonight. Okay. Thanks. Next what do we really know about the pilot of flight 370 . Ill talk to two men who knew him well. When you hear what they have to say you may change your mind about what you think happened in the cockpit. Well bring you the latest word from search zone as soon as we get it. 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Let me start with you, if i may. Again i will extend to you my deepest condolences to you about what has happened to your friend. We dont know for sure that he has perished in this. But what we do know is that he has been the focus of huge attention. How do you feel about that as his friend . A lot of aspersions cast about his being involved in the plane taken off nefariously. What do you feel . I thank you for your words of comfort. Definitely all this remains speculation. As far as my feelings, im actually very disappointed that we seem to be losing focus on the search itself but rather trying to find the fault, pinning of the fault onto the pilot. And i repeat its purely speculative. We have to show compassion to the family. Going through this difficult time and with all these kinds of speculation it makes it even more difficult for the families. Not just the pilot, as well as everybody else on board. I think its a very, very unfair and the timing is just not right. And tell me about your friend zaharie. What kind of man is he . Captain zaharie is a very dedicated pilot, responsible and a professional pilot with 30 years experience, 18,000 flying hours. There cannot be a better pilot. And as i always have mentioned, if i get to choose a pilot on the plane that i am onboard i would choose captain zaharie as my pilots. No doubts about that. Can you think of anything that y