In the United States and around the world. Im wolf blitzer. Youre in the situation room. This is cnn breaking news. And the breaking news the search for flight 370 is back underway. It was suspended 24 hours ago because of stormy conditions in the southern indian ocean. The weather has now improved. Cnn forecasters tell us strong winds and currents might still be a serious problem. 2 1 2 weeks after the plane vanished investigators cant afford anymore delays. Analysts are tracking every new development here in the situation room and around the globe covering the story as only cnn can. Lets go first to jim sciutto. Within the hour some new advanced equipment is going to be arriving in australia from the u. S. To help potentially aid in the search including unmanned submarine pinger locaterer. We are told they are so far from finding where the plane went down, no closer we are told by the pentagon. This happens as many victims families frustrated and anger. Today the Malaysia Airlines ceo said it in the starkest terms so far, all hope for survivors is gone. The aircraft is not lost and none of the passengers or crew on board survived. Reporter many family members refuse to accept flight 370s fate. No evidence that the flight was crashed. Reporter and today they directed their frustration at the malaysian government joining an angry protest outside the Malaysia Embassy in beijing. They said no one survived, no evidence. Reporter many of thor answers they are demanding may lie with the aircraft itself, now most likely somewhere at the bottom of the southern indian ocean. We are not searching for a needle in a hay stack. We are trying to define where the hay stack is. Reporter the latest satellite data indicates the plane went down in an extremely remote stretch. Much of the sea bottom has never been thoroughly charted. This is an extremely remote part of the world. It is 3,500 meters deep. It is a massive exercise. Reporter that is in the best of conditions. Gale force winds. It is very, very dangerous even for big ships. Reporter in a Rare International coalition six countries are now taking part in the search including at least four aircraft and one ship from australia, two aircraft each from the u. S. And south korea, one from new zealand and 15 ships from china. Flight 370 is being sought by air, sea and sound. The u. S. Navy tweeted this photo of a pinger locater. The device will be lowered into the sea to listen for the pings for the planes flight recorders. They sound Something Like this the devices wont reach the area until april 5 just three days before the batteries in the signaling device will likely go dead. Malaysia Airlines Announced the families of the passengers have been paid 5,000 each to help cover costs, that is just the down payment on the millions of dollars that the airliner is likely to be liable following loss of flight 370. Lets get the latest on the search for flight 370. I take it the first surveillance plane has taken off, a chinese aircraft . Reporter that happened about an hour ago. And the flights are continuing to take off. I can hear some of the turbo props revving up about five minutes ago. These planes will stagger throughout the day leaving from this air base as well as Perth International and heading to that search area four hours away. A different tactic today. They will split the search into three different areas, trying to cover more of the sea. 80,000 square kilometers. One of the key search areas will be done by sea. The australian ship is going to be steaming to the area where debris was spotted by an australian plane two days ago. That is going to be one of the key search areas. There are noi sw six countries involved, a massive show of search in the air trying to bring evidence home for families. I know it is wednesday morning where you are in perth, australia. I heard from one u. S. Official involved in the operation they are feeling pretty good about potentially what could happen today. The weather relatively decent. There are a lot of planes flying over it. There is some debris. They are hopeful they might spot something. Are you getting the same upbeat assessment from folks in australia on the ground . Reporter nthey are feeling better about how many countries involved. More planes and ships flooding the area than before. If they are going to find it today may be the day. The problem is even though conditions are improved as you point out they are not ideal. They were ideal a few days ago. The interesting thing we are hearing here is that all people getting into the search planes really feel driven by this. They really want to bring an answer home. That is something that they all have seen pictures on cnn and they know that they need something in order to have closure. Closely in touch with you. Thank you. In china handling of the investigation, anger while hundreds protested outside the Malaysian Embassy in beijing. What is the latest there . Reporter the latest is this angerer which has been simmering for days here in bay ying has finally broken. These are the families and friends of those on board Malaysia Flight 370. They are angry and frustrated. They want answers. They want to know where the plane is. Dont even get evidence that the plane crashed. They said it is over. They say no one survived, no evidence. If you find something Reporter Police prevented the bus from leaving the Beijing Hotel that has been their home base so they took to the streets on foot marching to the Malaysian Embassy. From the beginning they just hide everything. I dont think this kind of government, liar can solve anything. Reporter according to the passenger manifest 154 of the 227 passengers on board flight 370 were from china. And their loved ones say they are resilient and resolved and willing to rest until their questions are answered. Nothing found. We will stay here or go to malaysia to fight for ourselves. Reporter highly unusual for the Chinese Government and the communist party to allow protests to happen here on the streets particularly in beijing. One has to believe at least tas udapproval of the protests or the government knows if they get involved to crack down on them like they would with pretty much any other protest they would face the wrath of the family. A tight spot for the government. Any improvement with the chinese relationship with malaysia. They want answers and so far have not received satisfaction as far as providing information about what happened. The chinese now according to state media are sending a special envoy to malaysia. That will apply more pressure on the malaysian government from the chinese side. And while you have seen a great deal of cooperation between countries in the search effort when it comes to the information flow and managing of this process a lot of pointed fingers from here in china towards malaysia. That is stewing their anger of the fam eilies that depend on state media. The pollution is very heavy at this Early Morning hour. Thanks for that. Lets bring in our panel to discuss. Joining us renee marsh, cnn aviation analyst miles obrien. Aviation analyst peter ghols. Have you ever seen anything like this . This explosion of anger from the families in any of the investigations you were involved in . No. The family assistance act in the United States really set up a process to deal with these kinds of very challenging situations. But this is really unprecedented and is so heart rendering. Miles, you have covered these investigations for years. Have you ever seen this kind of anger and protest coming from family members . Nothing like this. The family assistance act sets up a whole mechanism which provides counseling, Grief Support and frankly briefings in advance of News Conferences so the families feel they are being informed and facts laid out for them, not conclusions, facts. That is the least the families are entitled to. There is a limited of time before they find the black box. Are you optimistic they can find it . No. Im not optimistic they will find it in that timeframe. Over time it might happen but it might be years. The life span of information . Pretty much indefinite. It can go down to 20,000 feet. This is 10,000 feet of water we think. You did reporting on the pings getting and now half a ping as some are calling it. What is the latest on that . It does suggest that this is more of an art than a science, this investigation. It really is, wolf. Every day we are hearing about a new piece of data that perhaps they will be able to drill down on and gain a little bit more information about. So this partial connection or partial handshake as they are officially calling it, it happened after that 8 11 ping that we have been talking about for weeks. They picked up something that happened around 8 19. Here is the thing. They are kind of stumped. What does it mean . Does it mean that is the point where the plane went down or does it mean the plane was flying at at 8 19. They have been honest in saying we are not quite sure but we will be looking into it. Here is why it is significant. It may if they are able to drill down and pull out more information we may get a better idea as to where the plane truly did go down and then we can narrow the search and have a smaller area to search. As one person put it searching the moon is easier than searching the bottom of the ocean. Three weeks later it could have moved hundreds of miles by the time the currents took hold of it. Where do you come down on this . More likely some sort of mechanical failure or criminal activity . Wolf, its very difficult to choose one side or the other. I can make an argument either way. Neither argument is without fault. So its too early. There are a lot of things that we dont know that hopefully more information coming from the satellite can give us. We are getting conflicting reports whether the aircraft was at 35,000 feet or as the Malaysian Air force tells us it was down to 12,000 feet. That is a big difference in terms of how quicklyt that plane would have reached the location that they say is where it has crashed. And because of that we dont know the motives, the how and the why depends upon what altitude and how that aircraft was flown. It is just too early. What are you hearing as far as u. S. Investigators . Are they more inclined to believe accident, mechanical failure or criminal activity . They still think it is the pilots based on the fact it was someone who was able to redirect the plane and turn the transponders off. The likelihood is that it was a pilot. Sure maybe someone on the crew. The other thing they say is they havent gotten a lot off the computer. This is the computer that the u. S. Took to look for deleted information. They have taken it and are looking at it. That is really the fbis expertise. So far they havent found anything. What about the co pilot . Nothing new in any oft that. As the u. S. Steps back they say we are still not that involved. We have four agents on the ground listening. We have computers that dont say a lot. Besides that we are not that much there. We dont know, it is possible the two pilots were just doing their job but somebody got into the cockpit and took over for whatever reason. Absolutely right. We have no evidence to indict the pilots for anything. They seem like perfectly fine aviateers with good records. We just dont have the facts yet. As you learn more about this every day you could say we are back at square one right now. When i saw the track that was laid out i thought this every day is a new event. What is interesting about that is it lays out three turns. The first turn is easy to explain as result of rapid decompression. The next two turns dont make as much sense when you are dealing with catastrophic failure. It looks like a willful act at that point. However, you can make arguments at both sides of this. Here we are deep into this and we cant rule it out. Adding to your point that goes to show why not one piece is more important than the other. The debris isnt more important than finding the data recorder. You have the information where the cockpit voice recorder isnt going to capture the last two hours. We need every piece we can to paint the picture of what went on because we spent days with all of these theories. Then, of course, it begs the question, what kind of changes will come about after all of this . It seems like this is a turning point for the aviation industry. The malaysians announced that all of the search going on in the northern over land, that has ended. Is that smart . I think it is. I think that when you are searching an area larger than the state of texas for a tiny piece of wreckage, i think you want to put every resource youve got into the most likely locale. You have to narrow that down. If you cant do it you are never going to find them. You talk to u. S. Officials all the time. What are they saying about the decision to say it is over, the people aboard the plane are dead . They say the malaysians made a lot of missteps here by not being transparent from the beginning. The u. S. Says they are trying to book end this here but they understand why the people dont take everything they say so seriously. Because they made so many blunders, the malaysians. What a tremendous credibility problem they made for themselves. Still ahead the enormous challenge of searching a section of the ocean that is more than twice the size of texas. We are going to show you the target zone is being mapped out. And a passengers wife shares her sorrow. She says she doesnt have the courage to tell her sons their father may not come home. I cant trust malaysia government. Its a growing trend in business do more with less with less energy. Hp is helping ups do just that. Soon, the worlds most intelligent servers, designed by hp, will give ups over twice the performance, using forty percent less energy. Multiply that across over a thousand locations, and theyll provide the same benefit to the environment as over 60,000 trees. Thats a trend we can all get behind. Return on investment wall isnt a street. Isnt the only return im looking forward to. For some, every dollar is earned with sweat, sacrifice, courage. Which is why usaa is honored to help our members with everything from investing for retirement to saving for college. Our commitment to current and former military members and their families is without equal. 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Breathe right. agent i understand. dad weve never sold a house before. agent ill walk you guys through every step. dad so if we sell, do you think we can swing it . agent i have the numbers right here and based on the comps that ive found, the timing is perfect. Theres a lot of buyers for a house like yours. dad thats good to know. mom im so excited. The search for flight 370 is back underway after a 24hour delay because of bad weather. There is a huge expanse of the indian ocean to investigate. Tom foreman is in our virtual studio to break it down for us. I cant hear the show. Tom is not hearing us. Lets try to connect with tom and make sure he can break it down for us. Lets bring down colleen keller. Senior analyst that helped with search for flight 447. Tell us about the search underway. This is an area they are searching that is a whole lot bigger than the search in the atlantic for the air france plane that went down. We are covering an enormous area with a large number of search assets in a multiple day search here. What they are doing right now. You might wonder how they pick the size of search areas they cover with different aircraft. Im sure they are using a process that is outlined in the International Air nautical search manual which takes into account visibility, sea state, size of target, altitude and speed of search aircraft. Most are probably using visual search looking out the window, trying to pick up the signature, just a visual of pieces of floating debris. And the manualual will tell them how long they have to stay on station, how close they think they need to get before they can see something. And that is how these search areas are laid out. I want you to stand by. I think we have reconnected with tom foreman in our virtual studio walking through the search. Go ahead and explain what you have come up with. Wolf, this is a big search area, still. There is still an awful lot of territory that needs to be covered, about 621,000 square miles. That is still five times as large as air france search area and essentially unsearchable at that size. So part of what they want to do is bring this down to size a little bit. Let me show you how that might be accomplished here. If you went out to the water and you had to bring the search area down you impose a grid on your search area. You bring your image of where you think the plane went and put it in the grid. Not all of the squares here for searching are created equal. Some are of higher value than others. If you imagine the middle to be the highest value area and move to the edges less value lets say you had data that suggested that maybe the plane was going a little bit slower. T that could shift your search area values over towards me over here. They would become higher value here and less so over there. You would intensify efforts here. One of the projections would say it would be a little bit more to its right as it flew this way. Likewise we dont know precisely when it ran out of fuel. When a plane is traveling this fast a difference of ten minutes could make a big difference. If it went out of fuel and had virtually no glide then you have a search area that searches way up here in terms of importance. It has to move to the first part of the big box. You are looking for evidence of that. But imagine the opposite which is also possible. We dont know when the fuel ran out but lets say the fuel lasted as long as it possibly could and the glide was as far as it could then look what happens . Then yo