abe! get in! punch it! let quicken loans help you save your money. with a mortgage that's engineered to amaze! add vanishing deductible from nationwide insurance and get $100 off for every year of safe driving. we put members first. join the nation. ♪ nationwide is on your side this is a breaking news special report, i'm don lemon. we begin with breaking news, bluefin-21, the navy's underwater vehicle is searching the navy floor at this very hour. it was sent down about 12 hours ago and is expected to remain in the water for another 12 hours or so until about 10 a.m. eastern time on wednesday.

we have also learned this afternoon that engineers now believe they can program bluefin to go deeper than originally planned. the probe's first mission on monday was aborted after about six hours when it went below its current maximum depth limit. as the search goes on there are still many more questions than answers. and you have been tweeting us your questions by the thousands and we've got top aviation experts standing by to answer them for you. like this great question, what other assets exist besides the bluefin that could be used to locate the wreckage? now we want to go to the latest in the search for malaysian airlines flight 370. i want to turn to cnn reporters, michael holmes in perth, joe johns in kuala lumpur. joe johns, good evening to you first. turns out they didn't find data from the bluefin they brought back up yesterday but it had to return hours before it finished

their mission. are they expecting more from bluefin today? >> reporter: yeah, that is right, don, the aborted mission was cut short, because it told them if it got to 4500 meters it had to come back up. that is what it did. they're actually talking about re-programming the software to let it go down even deeper. it went about four square kilometers during that first trip. don, you remember about the first mission, going four square kilometers on this journey it did four square miles. when they got up, they took the data, found nothing of note. it has another six hours or so on the bottom before it comes back up and they will have another look. so so far, nothing, but it is early on in this. one thing that they were heartened by, don, is it all seemed to work. i mean, the unit itself seemed

to perform well, don. >> you know, michael given the limitations of working with the bluefin, why can't they put more than one robosub down there? >> reporter: it is a fair question, don, i think the answer is there is not that many of these things around. obviously, a highly technical piece of equipment. and there are others around the world. but they're all in use at the moment. they're in great demand for oil and gas research, if you like on the bottom of the ocean. and so they're all at work at the moment. this was the only one that was available. you know, they have their eyes out for others as they become available. but this is the one they were able to bring in. they brought it in on a 747 and got it out there on the ocean shield. that is the thing, if you pull another one out that is the ship to be the mother ship if you like, too. it is a complicated thing, though, don.

joe, the malaysian cabinet has agreed to set up an investigation team to specifically look into the flight 370 case. joe, what is this investigative committee supposed to do? >> reporter: well, it sounds roughly similar to the commissions that get started in washington when there is a disaster, perhaps like the space shuttle commission. the 9/11 commission, don. it is acceptance of the fact that malaysia has questions that need to be answered in a thoughtful way i think about mh-370. this investigative committee is going to be looking at a airworthiness, all the things that could help to explain how a jumbo jet could seemingly vanish without a trace with hundreds of people on board, don. >> you know the acting minister, also the acting transportation minister raised comments that raised eyebrows this evening. let's take a listen to it. >> we did not go -- our ministry

of defense was not attacked like the pentagon was, putrajaya was not attacked but we need to consider that as a possible future threat and that, and the sops with the air force may have to be relooked at. >> so joe, give us the context. why is he bringing up 9/11? >> well, those remarks were made at this huge defense services expo here in kuala lumpur. we went over there yesterday. people from all over the world, including some u.s. military. and his point is that malaysia needs to upgrade its capabilities, including surveillance in space and under water. although it does sound like he is saying the air defenses here are just not great. so there are a lot of considerations right now for malaysia relating to mh-370,

don. >> all right, joe johns, thank you very much. time now for my team of experts. mary schiavo, former inspector general of the department of transportation, now an attorney for victims of transportation accidents. david souci of "why planes crash." and les amend, who flies a boeing. hello to all of you, jeffrey to you first in perth. how is the weather changing in perth? is it becoming a factor in this search? >> reporter: john, not at this stage. weather out in the search area, this is the current search area is varying showers, occasional showers, visibility about five miles to ten miles, depending on the day. there is the occasional, just the occasional front coming through. but at this stage of the season,

in a few months time of course the weather will turn a lot worse. but for the time being it is okay for searching for debris. >> jeffrey, yesterday we reported that the new zealand search team had taken some debris and some photographs from the search area. and those were being analyzed. what more do we know about that? >> john, you're absolutely right. at this stage, we haven't been told. we're waiting for another press conference. nothing has been advised as of yet. but we're certainly waiting for that analysis. and of course, we're waiting for that analysis of the oil that was picked up off the water about three miles down wind, and down sea of where they're searching for the black boxes. so there is two tantalizing pieces of evidence if you like that we're hanging on, waiting for confirmation, either way. >> all right, mary schiavo here in the united states, do you think that the bluefin will

ultima ultimately be able to get the job done despite some of the setbacks in its mission so far? >> well, i do, particularly since the day we learned they think they can re-program it and get it to dive in a little deeper water. but if not if they need more, i think we also heard from another spokesperson from that company i think there are eight worldwide. and so if they need to go get more to divide and conquer and get the job done faster. and of course they can move to the other kinds of vehicles such as the alvin, or the sea dragon, so they have a lot of other things they can call in. and they will call them in if they feel they have to have them. so for now it is doing the job. >> and jeff wise, the bluefin did exactly what it was programmed to do, which is to come back up if it succeeds. it is approximately 15,000 foot

maximum depth limit. what happens if it goes beyond that? because don't they design these submersibles to go a little deep are than their capability? >> well, certainly, they have a margin built in so it doesn't go beyond the capability and implode. but it has its limits. the ocean does get quite a bit deeper than it does at this particular spot. so in the event that it is much deeper than what it is operating at today they're going to have to call in other pieces of equipment that can go deeper. and fortunately these things do exist. >> david souci, do you think we may see manned subs down there, something like the alvin manned research sub machine? >> i think we well in the retrieval phase, but right now we're talking about those that are complimenting the search, and the only one that comes to mind is the remus that has the photography capability. that is what i would expect to

see next if they don't see anything with the bluefin. >> les amend, the oil slick, you and i were at the press conference when they announced it. on the way back to the mainland for testing now will they be able to determine if that oil field is specific to this airplane? >> my understanding is yes, absolutely. it is very specific fluid that is either from the engines themselves, there is about 20 quarts in each engine, a lot of hydraulic fluid. yes, they should be able to make easy analysis with what the origination of what that fluid is. >> and hopefully we'll get confirmation on what this oil slick is related to. but are you still confident we are looking in the right place? >> yes, i am. i am hoping with you that the oil slick will prove to be

something worthwhile as well as other evidence reported over the last few days. we'll just have to wait and see, and i'll be waiting. >> stick with me, everyone, when we come back, the legendary ocean mystery. the titanic sank exactly 102 years ago today. what did scientists learn about that, and how can those lessons be applied to the search for flight 370? defiance is in our bones. defiance never grows old. citracal maximum. calcium citrate plus d.

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i'm don lemon, our breaking news once again, the underwater search vehicle bluefin is scouring the floor of the ocean right now, searching for signs of the malaysian airlines flight 370. they used deep sea help used in the search for the titanic. >> reporter: if this seems like six weeks of hunting in the vast stretch of ocean, think back to another ill-fated voyage, one that ended exactly 102 years ago. the titanic set sail on april tenth, 1912, the largest passenger ship in the world and cost the equivalent of $100

million. james cameron was director of the blockbuster movie "titanic". >> really, titanic was a well built ship, manned by competent crews and they were obeying all the rulin the rules of the time. >> four days later, the titanic struck an iceberg and its fate was sealed. more than 1400 people perished. for years, the sunken airliner remained on the floor. and the mystery grew by myths and theories. but in 1985. searchers finally realized why the wreckage had eluded them. >> reporter: the reported location of the ship's sos transmission turned out to be wrong by 13 miles. the wreckage was finally found, split in half, resting over 12,000 feet below the ocean surface. still, compared to the search for flight 370 the titanic

expeditions were at an advantage. >> in this case, we don't even have a report of distress position. and the ocean is just as deep here or deeper than it is at the titanic. >> reporter: much about the two, says stevenson, is similar, including the use of underwater search vehicles. >> the most recent expeditions in 2010 used elements almost the same as what they used for the search for the malaysian airliner today. >> reporter: if the wreckage of the plane is found the next step is analyzing it. a lesson learned from the titanic is not to jump to conclusions. >> there have been a lot of investigations as to why the titanic sank. was it a design flaw? was it steel? were the rivets breached? if you look at anything in isolation you really can disprove it. >> reporter: and the way to solve the mystery this time he says is the same. >> if we can find the wreckage as we did with the titanic, then

we can reverse engineer and find out what happened. as with the titanic, the wreck will have the last word. >> jean casarez, new york. >> all right, jean, we appreciate it. 102 years ago later, what happened to the titanic still fast natuominatature -- fast na people worldwide. he was part of the team that found the titanic at the bottom of the atlantic. thank you for joining us, do you think the search is being done in the right manner? >> thank you for inviting me first, don, yes, i think so. titanic didn't have a pinger on it that we could listen and be guaranteed within a few miles of the wreck in order to know where it was. and given the fact this is sort of a standard search procedure that the u.s. navy uses for its military planes and things like

that i really can't see any other options. >> so do you think they're searching in the right area, jules? >> well, if they heard the pinger, i mean, the answer is yes. i mean, i spent a bit of time looking into the specifications of the manufacturer of the pinger. and they say well, you can hear us within two miles. and we go to the manufacturer of the towed pinger locater, you realize you're within two miles of that. you have to be within a couple of miles of the pinger to recognize it. is it near the pinger locater? certainly the box is there. i think we're within a couple of miles, the two and a half hour transmission that they located this thing. >> let's take a look at two pictures from air france 447. this is a look at the debris

field. and this is a clear picture of the engine on the ocean floor. can we eventually expect the same type of pictures when 370 is found? >> yeah, so that is a great question. you know. i think one thing that an oceanographer will tell you like myself is the ocean could be different anywhere. but i think the global feeling is that the deep ocean is actually very clear. all the stuff we see that comes down, somehow gets re-mineralized by the organisms in the ocean. it would certainly be easy for the teams that are out there to figure out how clear the ocean is, and given that scenario i think very much so given the camera systems, we should be able to see optical images just like the ones you see now from 447. >> that was my next question, can the bluefin give images from 447? >> i do believe that there is not a big difference between the

bluefin and the remus. and so given the scenario that the bluefin does have a camera and lights on it there is no reason that it can't. >> all right, let's talk about the bluefin creating a map of the ocean floor. is it possible the wreckage could be mistaken for boulders or possibly rolling hills? >> yeah, so this is a great question which again challenges our knowledge of the environment. now, as you probably know from the stories we have been hearing and learning, we're using an acoustic system. that means we send a sound out and it reflects off the sea floor and we listen to the reflection. and then by compositing the reflections, we know they're rolling hills. there is a lot of silt -- >> why is that the best news that you've heard all week? >> because the rolling hills, you would be much worse off if you were in canyons and valleys

and if you had all kinds of crevices and big boulders all around. so rolling hills is not a bad place for sonar. we want to see the figure from the ground and if it is just rolling hills and if the actually sediment is around, things like man made objects and other metallic objects in principle should give us reflective options that would allow us to see the difference between the manmade objects and the rolling hills. >> do you think we may see manmade vehicles go down, i would imagine if that would be if the bluefin-21 doesn't locate anything? >> personally, i think the worst thing to do would be to send a manned vehicle down. i think the worst thing we have learned if you look at the gulf of mexico oil spill they were actually able to fix that with a

remote rov, a remote operational vehicle. we have vehicles with tools on them that can cut and hold wrenches and do things, bringing black boxes up. if you're an alvin you don't have that much time on the bottom. you're much better off with these remote tools, in my estimation. >> because there is not enough time with the manned vehicle? >> yes, as i described last week when i first started working with ballard, he said it is a long elevator ride down, you have three or four hours on target and it is a long ride ba back up. the great thing about the remote vehicles, they're 24/7, let's say it comes back, maintenance, does another 24 hours, you can't do that in a manned vehicle. >> i want to ask you another question about the titanic, do you think they will find flight 370? >> absolutely. i mean, i think so. i really do. i think they're going to find

it. i think we have a good location for it. the sonar pinger was giving us a good radius of search, and i can't imagine all this debris is going to light up the sonar. and i think in the next week, hopefully we'll find it. >> okay, ultimately, though, the bulk of the titanic was left in its final resting place on the ocean floor. do you think the more time passes the same choice could be made about flight 370? >> well, there was a huge commercial interest in bringing the titanic back. i mean, people had dreamed of having amusement parks with the titanic in it. it is really hard to bring back stuff at the bottom of the ocean. i think a good survey of over a period of maybe a week or two would give us a lot of information coupled with the flight recorders to really make conclusions about what happened.

>> jules jaffe, fascinating, thank you so much. thank you for having me. when we come back, an eye-opening statement about who should control the black boxes if they're found. i'll ask my team of experts about it. who drove to the conm [ woman ] driverless mode engaged. find parking space. [ woman ] parking space found. [ male announcer ] ...that secured the data that directed the turbines that powered the farm that made the milk that went to the store that reminded the man to buy the milk that was poured by the girl who loved the cat. [ meows ] the internet of everything is changing everything. cisco. tomorrow starts here.

incheon, inch top malaysian government had this to say about flight 370, black boxes. it matters less which country takes control of them than to find out the truth. back now with my team of experts, first to david souci, david, what do you make about what the minister said about the black boxes? do you agree they are possibly the most important part of this investigation? >> there is no doubt in my mind that they are. the fact he felt it doesn't matter. he just wants the truth. well, to get to the truth you have to take care to get there. it just is indicative of the kind of careless communication we've gotten from the malaysian government at this time. again, they're not experienced at it. i can see why -- his intent is good. i can see what he is saying. he is trying to get at the truth. i understand that.

but if you look at how angus houston is hijacking tandling t situation, it is no conclusion, just the facts. >> yes, just the facts. the aerial search are for the missing debris is winding down. it is able to conclude the search without finding any debris, is that possible? >> well, it is an interesting comment, don, they did say it would wind down over the last few days. in fact they designated an area they were re-visiting which i last looked at by the end of march. they have new drift and current information. new analysis, that is where they're not searching, which is some 600 miles southwest of where they had been looking for debris. and so it is basically due west of perth. and it is about one and a half thousand miles west of perth. so there is no sign at this

stage, lots of airplanes in the air today. >> les abend, are you concerned that the search may be ending too soon? >> yeah, it seems to me it is getting expensive but yeah, i'm concerned about that. i mean, we all have experience, but the fact that any time we have an impact or an accident of this nature that -- in the ocean, we have some sort of debris as everybody pretty much knows. but from a military expert in accident investigation he said don't be surprised to be surprised. so -- >> yeah, mary, the malaysian cabinet agreed to set up an international investigation to look into anything that may have played a role in the plane's disappearance, like airworthiness, operations, is this a step in the right direction, do you believe? >> oh, no, this is something they should be doing and must be

doing, particularly under the treaties and rules and regulations that set forth accident investigations. the ntsb sets up many different committees, each one dealing with separate aspects of the investigation. and each one recommends with their reports. if they don't have a committee then there is no hope of getting findings and more importantly recommendations for results in the future. so this is very important, this is what they have to be doing and at least this way they're ready to direct the evidence when the evidence is parsed out. >> and mary, with investigators like you, when you have an inquiry headed by the malaysians at this point? >> it all depends on how transparent it is. if they have participants, for example on the committee that will look at the black box information they have already said that they can't do it.

so that leaves four nations that can. they probably will have all four help, australia, u.k., france and the united states. and so if it is a transparent investigation, and it is truly an open, what they call the open party system, meaning boeing is a party. malaysian air is a party, the government is helping on the search and the black boxes will be parties, as long as it is open and transparent then you can have some trust in the system. you know, it is -- that is what is going to be the key to having people believe it and having it have a useful product, something that we truly can use to improve aviation safety and security. >> jeff wise? >> we're also learning that the faa announced all planes will have gps tracking technology by 2020. sounds like a big headline, but would it have prevented anything from flight 370? >> right, so this new air traffic control system called next gen, the key technology

behind it is calls edsb. and as you pointed out this involves planes carrying gps equipment. determining their own position by satellite. and then through ground-based radio transmitters are able to communicate that information to air traffic controllers. so it is a very sophisticated, advanced system. and will go a long way towards improving air safety in the united states. would it have changed the situation with mh-370? no. why? because mh-370 already had edsb on board. in fact if you had gone to one of these airline tracking websi websites in the aftermath of the incident you would have been able to see where mh-370 went before that fated turn to the west. the system was turned off. so as it is currently envisaged, this system would not have prevented mh-370's disappearance because it was turned off. it can be turned off. maybe in the future they will

change it so that it can't be turned off but it was in fact in place already. >> jim tillman, it will be hard to figure this out without figuring out what happened to the pilot and co-pilot. are we any closer? >> no, as a matter of fact i think there is even more fog in the air as we get little pieces of information that the malaysians release to us about what they know or think they know about what the pilot conduct was all about. so no. >> all right, when we come back, my panel of experts will answer your questions.

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my team of experts back now with me answering your tweets. first, this is to les, les, let's take a look at this tweet that says the question should not be what new technology to track planes but what procedures should be enforce d when tracks is turned off. this kind of goes to what jeff wise was talking about, les? >> well, let's get a little clarification on adsb, a tracking system coming from the satellite that sends it to a ground station that then sends it to a radar system.

this is used on the north atlantic. the reason the adsb, it was functional, i agree with jeff on that. but the reason it did not perform was because you have to have a participating air traffic control in the entire system. so i don't believe that they participated. as far as turning it off it is not the transponder that turns it off. what turns it off is a function on the triple 7 anyhow of the flight management computer, then it can be turned off. but next gen is going to the united states because we're participating in next gen. with these other countries, europe is participating. other countries are, and i'm not familiar with the far east, but that is why this system failed with malaysian 370. >> david souci? >> yeah, i actually was on the team that wrote the omb 300, the funding document. if you want to know more about next gen, you need to talk to me, not understand who doesn't understand what adsb, adsb 1

that was sending the signal out, and jeff, i'm not talking about you, but les and i are on key with this. but adsb, which would be sending the signal out, i agree, that would have what the signal is equipped with. but adsb 2 sends to every other aircraft in the system. when that happens, even if they turn the switch off immediately every other aircraft who might have had any other interaction with the aircraft would get a signal, saying somebody turned it off. because that is the system. it is designed within the system. and yes, it may not have prevented the accident, i agree with that. but i tell you what, everybody would have known where that airplane went. >> jeff wise, you want to respond? >> well, know, i divert david ss

-- defer to david souci, the transmission of the plane, the ground based radar -- radio transmitters. that is why when once the plane was more than about 150 miles off the coast then you start to get that lapse in coverage. >> but that is not next gen. >> thank you guys for responding to it. i know y're very passionate about it. and we question yo-- appreciate your answers to the question. the question, what has become of the high tech british nuke sub reported to be in the area. >> that is an absolutely brilliant question too much i have no answer. i have asked many times here on the record, off the record, and i'm simply told you will never know. it is top secret. so you know, one has to assume that it is playing a very important role in this search. exactly what their capability

is, apparently we're not going to be told. >> all right, stick with me, everybody. when we come right back we'll have a closer look of what has been revealed by the search, all the trash floating around in the oceans, and the negative impact it may have. ♪ [ male announcer ] when fixed income experts... ♪ ...work with equity experts... ♪ ...who work with regional experts... ♪

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the search for flight 370 has put a spotlight on all the garbage floating around in the world's oceans, while that trash has impacted the search with many initially promising leads turning into disappointing dead ends, it may even have more significant consequences. the story tonight from cnn's stephanie elam. >> our oceans are littered in trash. >> reporter: as search teams

scour the ocean for debris from malaysia air flight 370. the world is getting a look at the oceans, several times, debris thought to be from the missing triple 7 jet turned out to be junk. anna cummings is the director of the institute which aims to end the plastic in the oceans. >> roughly 80 to 90% of the debris in the ocean is plastic. and the worst of it is people don't realize this is not only unsightly, this plastic is getting into the food chain and could affect our health. >> and it is affecting the animals? >> absolutely, roughly 660 species today, and that is a conservative estimate are affected by the plastic. they either get caught up in it, or are hurt by it. what is insidious, it doesn't disappear. it acts like a sponge for

contamina contaminants. >> reporter: noah says that it hits area such as hawaii. the problem is enforcement. countries need to do a better job of cracking down on pollution. and then there is another issue. the vast ocean waters are just difficult to police. what we've seen in the last five years is an explosion in awareness. all over the world, people realize we just can't afford the convenience of single use plastics and companies have to take responsibility for what happens to their plastics after it leaves the consumer's hands. what impact will this have on the ocean? the head of the safety and security program at the university of southern california says if it broke up, the debris floor would be massive. >> you're absolutely right. the wreckage field could be spread over an extremely large distance. >> reporter: yet as pollution

goes, the debris would be minimal. >> the debris from the missing plane is a drop in the bucket. roughly most of the debris found in the ocean starts on land. the oceans are vast, so this single tragedy with the missing airplane is not really going to make a dent in ocean pollution. >> reporter: but perhaps the sight of all that junk will make people think before they throw it away. stephanie elam, cnn, santa monica, california. >> thank you, stephanie for that report. i'm joined by an oceanographer at the university of new south wales in australia, thank you for joining us. you're an expert in this particular part of the indian ocean. have you been surprised by the amount of ocean debris found versus a lack of debris from the plane? >> no, not at all. we've known for a very long time that especially the recent search area, the new search area that they're looking at now, that there is a lot of debris there. because it is close to what we call the garbage patch.

and that is where all the plastic in the ocean kind of accumulates. there is five of them in each basin and one in the indian ocean. so everything that has been trend in -- thrown in the indian ocean is somewhere in this garbage patch. >> how do these patches form and is it possible, eric, at all to clean them up? >> well, they form essentially because the movement of the water is not two dimensional. it doesn't stay at the surface. it is kind of like a roller coaster ride where the water sinks and other places goes up. and the plastic is buoyant, so as the water sinks, the plastic stays behind. and in the meantime, more and more plastic is being carried into the regions by new water that sinks them. so it is kind of like this internal lube with the plastic

more and more accumulating. about whether it is possible to clean it up. i am extremely skeptical about that. and really because of three reasons, first of all what we now see with this plane and searching for this plane just how hard it is to work on the ocean. how hard it is to get ships out there. how big the ocean is, how much energy it takes, so i don't think it is really worth it in terms of energy. secondly, most of the plastics as was said in the report before is small plastic, plastic that gets into the food chain, the fish. and if you want to sieve out that small plastic, you are inevitably going to sieve out all the fish that you care for. so you end up with a dead ocean. and thirdly, a lot of people have wrong idea about what the garbage patches are. people believe they are islands of plastic. that is not true at all.

even the high amount that we see is one piece of plastic every square ten feet or so. so even though there is a lot of plastic it is very much extended over huge areas, thousands of miles. >> uh-huh. so the best way to stop it on the surface is to be aware of it and stop dumping stuff in the ocean if we can avoid it. and what about below the surface in the area they're searching? what types of debris can be found on the ocean floor, erik? >> well, to be honest, we don't know enough about the ocean floor and about the type of debris there is. and really there was only one study that came out last year at the monterey bay aquarium in the west coast, which was a really good study. they went back to all the food extended they had from the submarine there, the auv, and they looked at all of this footage and just tried to see how much plastic there was.

and there was a staggering amount of plastic, much more than was anticipated. plastic bags, tires, even whole refrigerators down there on the bottom of the ocean. but this was close to the continental shelf. so relatively close to monterey bay itself on the west coast, once you get on the open ocean there is just absolutely no data on how much plastic there is on the ocean floor. >> please stand by, when we come back the final thoughts from my experts. orbiting the moon in 1971. [ male announcer ] once it's earned, usaa auto insurance is often handed down from generation to generation. because it offers a superior level of protection. and because usaa's commitment to serve current and former military members and their families is without equal. begin your legacy. get an auto insurance quote. usaa. we know what it means to serve.

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my panel of experts back with me now for their final thoughts. here is my question, what do you believe will yield more useful information to help solve the mystery? the black boxes, the plane's debris? or the criminal investigation by the malaysians? first you, mary. >> flight data recorder. that is the number one thing. les abend? >> i agree with mary.

i think at this point the flight data recorder. >> jim tillman? >> i agree with that, and just hope something is there. >> jeff wise? >> i hate to be boring, but i'm going to side with everybody else. i believe the mystery is in that black box. >> and what about david souci? >> let's make it unanimous. >> it is unanimous, and i didn't even have to rush you guys or not speak to one of you. so you believe that all the clues will come from the black boxes? everything we need to know from the black boxes and not necessarily from the wreckage or from investigating the pilots? >> well, if i can jump in here, i mean, we hope that the answers will be there. we don't know, and definitely it is going to be interesting to see the wreckage. whatever answers are not in the black box. investigators are going to have to lock at the wreckage, you know, pull it up off the sea bed to look at the components and

see how they're affected by the crash. >> all right, thank you everybody. rememb remember, the bluefin-21 will come back up, let's hope it is working properly so it can stay down the entire 12 hours. that is it for me, a sonar sub in the flight 370 back on track. you'll see what a bluefin-21 can see. also breaking, new video. what appears to be the largest most dangerous gathering of al qaeda in years. did the cia and pentagon know about it or not. later, our dr. sanjay gupta fighting to stop the ebola crisis in west africa. some of those medical personnel have lost their lives in the battle. we begin with the latest for nearly three miles deep.