throughout our hours here on cnn. but again, this breaking news coming to us from ukraine. it's talking about crimea and a ship. good evening. it is the top of the hour. this is cnn's live special report on the urgent hunt for flight 370. as we come to you live right now, searchers are now in the skies above the prime focus area for this plane, an isolated section of the southern indian ocean. this is an area that has just become the scene of another debris sighting. >> the news i just received is that the chinese ambassador received satellite image of certain objects in the southern corridor and they will be sending ships to verify. >> the object in question is the largest one we have seen so far. 74 feet long, 43 feet wide. what makes this so credible? it is its location. just 75 miles from possible

debris that appeared earlier on australian satellite images. then there's this, a visual spotter doing a fly-over and one of these australian planes says he saw several small objects, including a wooden pallet, floatifloat ing wind twithin the defined search area. attached to the plane's black box. [ clicking ]area. attached to the plane's black box. [ clicking ] it appears ominous. a frantic search as the battery life on this search is set to run out in less than 14 days. so there is no doubt that those scouring the seas are feeling that pressure. on the phone with me now is navy commander william marks, public affairs officer for the 7th fleet which is involved in that search. we will get to that commander in just a little bit. he is traveling in that area and we have many questions for him.

as soon as we get him we'll bring him to you right here on cnn. in the two weeks since the plane disappeared there have been only four satellite images that could be the pieces of this missing plane. the first was the day after this incident. vietnam released the image of something in the gulf of thailand. china followed that three days with images of several objects in the south china sea. then china later said releasing the images, well, that was a mistake. the search then shifted to about 1,500 miles southwest of australia with these images released this past thursday of objects from an australian satellite. and then today as we mentioned, this one seen by chinese satellite in the same general part of the ocean. joining me now this hour is going to be cnn's richard quest, he's our aviation correspondent. michael kay is going to join us in just a little bit here. mike o'kay as former minister of defense. and christine dennis son. first what do you make of these new developments?

first, as the malaysians were holding a press conference, someone handed him a piece of paper saying, now there has been something found in china, and here it is. >> right. it is confirmation that there is something there that they want to go and have a look at. is it the same piece of debris that has now moved 100 or so, 140-odd kilometers over from the last known position? is it the same piece? is it another piece? the prime minister of australia was very clear that this needs to go and be investigated. and that's why there are eight planes on their way to this part of the ocean at the moment to actually search for this area. this has been the next biggest, most credible development, if you like, of the day, don. >> i want to ask that question to michael kay now, former adviser to the uk minister of defense. what do you make of these new developments here? >> hi, richard. yeah, we're over two weeks into this investigation now and there's still no unequivocal

evidence to get us any the wiser. any information that could possibly give us a lead is welcoming. however, a word of caution. the downside of what we're seeing at the moment is it's 75 miles away from the previous supposed sighting of something. i'm not going to call it debris because there was a p-8 poseidon that went out to the southern area a couple of days ago and it spotted a freighter, it spotted a pod of dolphins, it spotted some other things that weren't debris. there could be all sorts of logical explanations for what that satellite is seeing. it could be a container off a ship, it could be a freighter, a pod of dolphins, a pod of whales, it could be refraction of light. >> as i look at it i thought that as well. this seems to be a reflection or a refraction. >> a refraction of light. if you actually look at the resolution of the satellite image it's not that great. a word of caution in terms what was we're looking at. the downside is that it's in the

same area. and that area is huge, 1,500 miles from southwest australia -- >> here's a question. as i heard and we're talking about the malaysian officials coming out today, either one of you can answer this. remember the satellite images of china about a week into this. >> not even a week. >> not even a week into this. then we had the other images, you and i were working until 3:00 in the morning from australia. now we have these images. do you think it is responsible for them to be releasing this information? i'm asking because, is it giving everyone false hope? including the families? >> damn tuesday they do, damned if they don't. if they did not release this, you would be the first person, don, sitting here screaming, why didn't we know about it? i think what i think is interesting is whether it's right for the australian prime minister as he has both the other night and today to use the word "credible." now, he may be using that word "credible," and you help us out here, he may be using that word credible in a technical and

scientific sense in that it might be. but when laymen hear the word "credible," they think he's saying it's it. >> yeah. >> i think it was a little bit premature, personally. however, what i would say is let's look back to 214, san francisco flight. the ntsb, that investigation where the ntsb was having to report to the 24-hour media news cycle almost every day on updates was very unique in terms of accident investigations. accident investigations are historically very quiet. they're very restricted. and the release of information is incredibly sensitive. you don't want to give too much because you don't want to sort of lead people down the wrong track. you don't want to give too little because obviously you want people to -- >> and on that point, the ntsb, i won't say was criticized. but eyebrows were raised. >> it was credit sized.

>> actually, it was criticized. >> well, the amount of information that was being released so soon from the investigation was really quite remarkable. >> it was. but it was created by the demand. and the demand came from 24 hours news outlets, it came from people banging on the door. i thought the way the head of the investigation handled it, her them -- >> deborah hertz man. >> i thought she was wonderful in the way she handled it because this is new for accident investigation boards. and i think it was the first of its kind to actually go through that social media process. so i thought she handled it very well. what asia doesn't have, asia hasn't been exposed to that yet. and therefore, i don't think we're seeing that drip release of information that we've seen with the san francisco flight -- >> she was slightly -- terrible disaster, crash, but she was slightly helped by the fact that the facts were relatively soon established by the ftr and the cvr, and therefore she had facts to be able -- credible facts

that she knew to be able to put out. >> right. >> i think without being argumentative, i think that can be a double-edged sword. >> without being argumentative. i feel like i need an accent to get in on this conversation. >> if it moves rapidly it means you've got to get it right first time. if you don't, things move beyond are you. >> let's move on. richard, i want to ask you this question. instead of satellite images, does u.s. have spy plane or drone images of search area, are these easier to obtain than satellite images? i wondered about the use of drones as well. >> and i have absolutely no idea. >> why, no. the blackbird was decommissioned awhile ago. the only knowledgeable spy plane that the u.s. deploys at the moment is the u2. the closest as far as i'm aware is based in sigh pruls. u2 operates at seriously high altitu altitudes. in terms of the equipment that would be used on drones and spy planes, the equipment that is deployed on the p-8 poseidon

which only reached operating capability in december '13, it's phenomenal. it's got signal intelligence capability. it is a phenomenal piece of kit. technology has its limitations. >> right. >> when the sea states are high, when the weather's coming in, when the visibility is low, the mark 1 eyebaeyeball is almost m important than the technology on board. the technology that is used to hunt for submarines, the p-3 orions have this magnetic anomaly detector. what that does is detects big lumps of metal just under the surface of the ocean, submarines that actually disturb the earth's force field. it's an incredible piece of kit but i would argue it's rendered ineffective against something like this. >> it's not a big piece of metal, also it could be a shipping container which is metal, a number of different things. stand by, guys. one pilot wonders why crews aren't searching on land

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welcome back to our special coverage of the mystery of flight 370. joining me now is richard quest, michael kay, former advise tore the u.s. ministry of defense. i said minister of defense, gave you a promotion a little bit earlier. christine dennison, expedition expert. i want to talk to you about these waters. again, i keep coming back to this because i don't think people really understand just what the searchers are up against. what everyone is up against here. this is really -- i'm not

exaggerating -- uncharted territory. are there even commercial flights that go across this water? >> no. so where we are at 1,500 miles off the coast of perth, australia, we're right there. then to the south of that is an artica at 3,500 miles away. so the research -- i'm sorry, they're in the middle of nowhere. there's nowhere to run, there's nowhere to hide. there's bad weather they're going to be encountering as we go into the fall season. everything that they're going to be out there with, as far as supplies, they're going to be as self-supplied as they possibly can for as long as a month if they have to be. because there's really no -- they're not close to anything at this point. >> right. so when we talk about this, when we say uncharted territory, these are waters that people who are going across the ocean, right, if you're going to go on the other side of the world, you avoid these waters. >> well, there's nothing there. it's very deep water. it's not a trafficked area. it's not a shipping lane. so there's no reason to really be in these waters.

>> is this a reason -- i'm just assuming here as viewers at home are -- that the satellite imagery is so poor? it's because of the depths of the water and because this is maybe -- maybe we don't feel that we need to, this should be covered, because no one traffics this area? >> well, at this point satellite imagery is only going to give you so much. i'm sure they're working with high-definition satellite images which would be the best resolution they can get. even with that, you still have to physically be able to see the object in the water. and they're doing the aerials and they're having a harder and harder time as the weather moves in. so you have to put people on the ocean to see them. so they're looking, they're spotters, they're looking to see what that debris physically is. what it looks like. >> is there a submersible that can be to the bottom of this area? >> to my knowledge, and i'm not a military expert, i don't believe the military has the capabilities on these subs to go farther than a couple thousand feet below the ocean surface. >> got a question. and the condition of the water?

we're hearing about 10, 15-foot waves. what's it like if you were in the water? the temperature, the roughness, the current, all that? >> well, you're going to have strong currents. on the surface it will also depend -- you have experts who are studying these. there's no reason to really put people in the water at this point. they don't have to, it's very deep. water temps are probably at this time of year in the 40s so it's cold. you've got winds. weather will vary. so all those elements are going to be very difficult if you were to have people in the water. >> i think what richard is pointing to, and you're being more subtle about it, the survivability of this. >> well, both that and also this idea of, most people never come across rough seas of that magnitude. so anybody that's got an idea of sort of a nice, gentle wave -- >> oh, no. >> that's what i'm getting at. even for the searchers. even just to look and see. >> here's the difference.

when we think about it -- put it in terms of movies. when you talk about "the perfect storm," atlantic or pacific. this is beyond that. >> well, they're so exposed. i mean, they are just -- if a weather system moves in, again, there's nowhere to run to. those waves, those winds, that is going to hit them hard. >> i was speaking to a number of retired p-3 crew today, just to sort of get their perspective on what it's like to actually look out of a p-3 traveling at 180, 240 knots at 200 feet in various sea states. then how you align that to the technology they've got on board and which one is more effective, the eyeball or using this technology. kind of the consensus i got from the guys was that in inclement weather conditions and high sea states, you literally had to be over the object to get eyes onto it. which i thought was phenomenal. even with all the technology, even with the magnetic anomaly

detectors and everything else, you had to be right over the top. if you weren't and it was hidden by a wave, you'd just fly right by it. so that to me just emphasized the difficulty of the task ahead. >> remember when we first started doing, this richard, i said what are the possibilities that we were -- it's skooefscone we may never know what happened. you said, no, no, no, no. it is skeefshl that we will probably figure out one day what happened but it's conceivable we may never know. this is not what you see off the coast of the beach. people are asking me, wouldn't something be floating on the false of the water? and it's like, no. maybe it's not. maybe it's miles upon miles under the sea in unexplored areas. >> that's what they need to ascertain at this point is what they're seeing on satellite, they physically need to go and see it. because you don't know what a satellite image how far under the water that image is. it could be an object that's just floating on the surface, it could be ten feet under water. they have to see it.

you can't get -- water's very dense. you can't see that from an image. you have to have eyes on the water. >> we tried to explain the other night, it was on the air with anderson cooper, you were there as well. and we said, just because they have spotted something, you know. everyone said, oh my gosh they're going to go and figure out whether -- it's like, no. you have to go, you drop buoys where you think -- if you find it, in the area you think it is. it's not an exact science where you go -- it's not like mapquest. >> right. because what happens, and meese, you're more experienced in this. the satellite shows it there. but by the time three or four days later -- >> the current, right. >> you're sending the planes out. it's moved. and you've got to work out from there, did it go there, there, there, there? you do that by the method of putting the buoys in the water, not modeling -- actually getting the data on which way -- >> can we talk about under the water as well? i'll let you finish up. i am fascinated by oceanography and by -- i don't know if you

guys have seen about the. about. c's "blue planet." >> yes. >> it is the most amazing documentary about the ocean and you learn about the abyssal plain and all this. there are ecosystems under the water. there are beaches under the water. there's molten lava. there are volcanos. there are earthquakes that happen that we never even know about that are miles down. and there's life that we don't know about. >> absolutely. >> yeah, i mean, what -- i just draw it back to the conversation we were having slightly earlier in terms of they're up against it on the technology side. the technology is there to detect huge lumps of metal that are under the surface. we're talking about relatively small bits of debris, the buoys, will find it incredibly hard to detect. yes, they're deploying the day to day have methods of anti-submarine hunting and maritime surveillance. but it's in a completely different context. and the reason -- >> the reason i say that is because if this comes in contact, say some sort of volcanic activity under the ocean, then the pressure -- you

start to limit whether or not you're going to actually find these voice recorders or the black boxes or any sort of debris if it is actually gone to the bottom of the ocean. >> that's the problem, it's a race against time. we're 15 days, 16 days into it. we've got very little time left. >> stick around. fascinating conversation. more coming up. especially your questions. up next, one expert wonders why crews aren't searching land considering the lack of signals from the underwater locater beacon that we talked about just a little bit ago. does he have a point here? we're going to go live to cnn's martin savidge inside the flight simulator for a demonstration. plus could satellites pick up images of survivors? this is a cnn special report. [ sniffles, coughs ] shhhh! i have a cold with this annoying runny nose. [ sniffles ] i better take something. [ male announcer ] dayquil cold and flu doesn't treat all that. it doesn't? [ male announcer ] alka-seltzer plus fights your worst cold symptoms plus has a fast-acting antihistamine. oh, what a relief it is!

while the search in the indian ocean intensifies, one expert points out this possibility. what if flight 370 ended up on land? to help you understand what you're about to hear, know the term "elt" stands for emergency locating transmitter. >> my contention is that maybe we should increase the search back over land. >> really? >> from the standpoint of the elts not activating with the salt water. you know, the slide rafts would have them -- one of them at least -- >> well, our experts believe 777s carry two to four locating transmitters. i want to test this concept. martin, this plane is supposed to have around 8,000 feet of runway to land. but could it have landed on a

far shorter runway? >> right, and that's the scenario we've set up here. we're actually aiming for a very small island, a real island with a real runway, airports being a little extravagant here, located off of period, australia, an hour's ferry ride. so it's in the area. this is an airplane as you point out needs 6,000, 8,000 feet of runway. we're aiming for something almost half that. and mitchell will claim that i have purposely done this just to make him look bad on tv. because on top of the fact that it's a very short runway, we've added in bad weather, which of course you never know what the weather's going to be. any port in a storm at this point. the aircraft would be pretty much running on fumes. and you're trying to make it to a runway which right now is almost invisible but it's that very narrow strip, say about, oh, 1:00. the air speed of this aircraft is about 140 knots now.

and the other thing that makes this approach apparently very difficult is tree line. the reason -- i didn't do this to make it, oh, let's see what mitchell can do. this is the reality. if you're desperate, if you have to land, beggars are not choosers. this is a runway. the other thing we should point out that is in the benefit of the 777 is the landing gear. it's got some of the biggest tires and wheels to be found on any commercial aircraft. that's good. it's also got a very robust landing gear just in case we were to overshoot it. so you can watch now as we navigate the last, what is it, 420 feet above the ground coming in on that very narrow air strip. and again, this aircraft is responding just as a true 777 would. there are the trees you've got to miss. but he's got to nail it right away on the ground. and the runway's slick,

slippery, and we've never done it before. and he's got to stop. >> oh my goodness. >> there's the reverse thrusters. we've got it on full max auto braking. and see, you did not embarrass yourself on national tv. he's managed to do it with room to spare. you know, this is a simulator, of course. you can only take it so far. the real thing you would have a lot of other things bearing on you. not to mention emotions. but at least it shows that in our particular case, it could have been done on a 4,000-foot runway, congratulations. >> mitchell, that was a little bit frightening. you can imagine it with the passengers. what passengers would be dealing with. each of us i'm sure has landed at an airport that has a short runway. this is beyond what you would feel if you had a short runway. >> absolutely. >> all right, guys.

thank you, captain. thank you very much, we appreciate you. >> just glad you got it done. >> we appreciate you, mitchell, and of course our martin savidge. i want to pose this land theory to some of our experts now. pilot bill savage, to you first. i also want to bring in a former senior fbi profiler mariel toole to ask as well. first i want to go to bill. what about this land scenario? people are saying, we've been talking about the southern -- whether it's in the southern indian ocean, but what about if it landed -- what about the northern arc? what if it landed on land? >> if the airplane didn't have a severe impact on the ground or in the water, elts would not have gone off. you wasn't have elts if it made a landing. >> mariel toole, in an investigation this large, who might make that call if the focus is over water or it's over land? >> well, that is an area of expertise that's outside of the

behavioral part of it. so the behavioral experts would not weigh in on that decision. but what we would weigh in on, what they might ask us is, is that behavior consistent with what occurred beforehand? so in other words, if you have a crew and the -- all the passengers who are extremely quiet. there's no noise. there's no indication from what we know right now that someone tried to break into that cockpit. and i'm just saying that there's no available evidence to suggest that at this point. then all of a sudden all of these people come alive again and they land the plane. so where our expertise would come in would be, if they ask us, is this theory consistent with all the behavior that we know about right now? >> all right, mariel toole, thank you very much. stand by as well. and you guys were all watching this. we're all going, oh my gosh.

you know. our hearts were pounding. so can you only imagine. we'll talk about it a little bit more. could the chinese images be pieces of the plane wreckage? what part of the plane should sink and what would stay afloat? we're going to tell you coming up. also, are the pilots' final "all right, good night" words and other actions evidence of the copilot's impairment, disorient station? we'll talk about that in our special report "the mystery of flight 370" coming up. fiber that's taste-free, grit-free and dissolves completely. so you can feel free to add it to anything. and feel better about doing it. better it with benefiber. [ male announcer ] your eyes.

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so planes are back in the skies right now above the southern indian ocean. it is morning in the southern hemisphere. and searchers are again returning to the area we have been talking about. now the scene of a new debris sighting. the australian prime minister just commented on these new satellite images and picked his words very carefully. >> it's still too early to be definite. but obviously we have not had a number of very credible leads. and there is increasing hope, no more than hope, no more than hope, that we might be on the road to discovering what did happen to this ill-fated aircraft. >> so back in malaysia, families of the missing are frazzled and they are exhausted.

>> we are here! we are here! >> to make matters worse, today they were asked to move out of their hotel and relocate to make room for formula 1 tourists. search teams now in the air will be trying to find a large object discovered by chinese satellite several days ago. but this huge piece may not be part, may not be part of flight 370. cnn's renee marsh has more now. >> reporter: some experts say the 74-foot object in this newly released satellite image from china is too big to be debris from the missing jet. others say we could be looking at multiple pieces. >> they're going to be actually intermingled with wire and other debris. so you may have a lot of smaller pieces mixed in which might look like a larger piece from a satellite or the air. >> reporter: the size of the debris depends on how the plane hit the water, assuming it did.

if it were going at a high rate of speed and made a nosedive like alaska airlines flight 261 did in 2000, when it crashed into the pacific, there would be a shatter effect breaking into thousands of small pieces. a mid-air collision like twa flight 800 would produce larger pieces of debris and a wider debris field. a third scenario, when ethiopian airlines flight 961 tried to make a controlled landing in the indian ocean in 1996, the plane broke into large pieces. what sinks and what floats depends on the part of the plane and the material it's made of. >> most of the cabin furnishings, for example, were made out of a variety of plastics, thermo plastics, and some composite materials. things line the overhead bins, the seat cushions, the cosmetic bulkheads, all of those typically should still be floating. >> reporter: metal pieces sink.

the engines go straight to the bottom and the fuselage too. in the crash of air france 447, the tail of the plane was still floating. experts say the tail of a 777 is made of composite material and it may still be floating as well. >> renee marsh, i understand you have a flight data recorder, talk to us. >> that's right. don, we've been talking about this dying battery on the locater pingers attached to the data recorders. and so this is it. this gold part here. this is the pinger that we're talking about. those pingers at this point on the data recorders that belong tonight 370 are about 50% trained at this point. as the battery dies the pinging gets more faint and eventually it stops. so tonight we now know what that pinging sound sounds like. and here it is. [ clicking ]

>> like a clock. >> it sounds like a ticking clock or snapping your fingers. but it's not as loud as you may have expected it to be. so when you consider that and you consider how deep the water is, you consider the other competing noises within the ocean, when the waves are smacking around, it just really illustrates how difficult this job is. because you have to be within a two-mile radius to actually pick this up. obviously you don't usually hear it with the human ear. they have special equipment that's designed to detect that snapping sound that you just heard. >> renee, there's another problem here. because searchers have, you know -- they said there are pieces that are floating. so the pieces that are floating today may not be floating tomorrow. >> absolutely. and we do know today nasa's stepping in to help. they told cnn that they will target their space assets to the area where these so-called floating objects were spotted to see if their equipment picks up

anything. but again, don, depending on how long the search really continues, some of the debris may become so waterlogged it eventually sinks. other pieces may be cracked and they may be filling with water. they would eventually sink. and some items could essentially float for years. but over the time, currents and winds will scatter them all around. so all of those scenarios are really problematic for the crews. because they're depending on a debris field to really lead them to the wreckage, don. >> renee mar insure washington, thank you very much. back now with my panel. richard quest, christine dennison, michael kay all join me now. we were talking about -- and in the flight simulator with martin savidge and mitchell about this land theory, why aren't they searching over land, why aren't people looking at land now? which a conversation among you guys, you said that's feasible, they should be looking over land. >> i think there's a number of different scenarios associated with the land thing that we have to look at. for example, was the crew under

duress or was it an emergency? i think you can -- it's unlikely it was an emergency because we'd have heard a mayday call, we'd have had 7700 put on the tran spoder. let's assume it was under duress. if it was under duress was the landing strip within malaysian air space or external to malaysian air space? if external that means it would have had to have crossed a sovereign boundary. we know in the post- 9/11 order in the world there, sovereign territories are very sensitive to traces coming across a sovereign boundary that aren't part of routine airways, corridor traffic, with no squall com. that alerts the therts to get the qra, quick action alert, to interrogate. that would be my big question. >> at this point, i think that you have -- they're mobilizing so many teams, so much aircraft. ships are going to be deployed. the expense is tremendous. and they're focusing on the ocean. because they're also following

the radar. and the data that they have. now, again, i believe it's very sensitive. it's political. i don't know that they're going to disclose a lot of information to us as to why specifically they're doing what they're doing. but i believe that eventually we will fine out more. but there's a lot of sensitive issues that go on as well. >> do you think that the land possibility is still -- do you think it's still a possibility? >> it's out there. >> it's one of the possibilities. >> do you agree? >> when i'm finished. >> but during the break he was saying he didn't agree with you, that's why i'm asking. >> that's his prerogative and privilege. but they have chosen to deploy all the resources down to the south indian ocean, because they believe that is where the most credible evidence is at the moment. i mean -- >> hear, hear, richard. i agree, absolutely. >> i agree, richard, in terms of we've got to leave all the cards

on the table. let's go down to the south, go down to the ocean. what i'm wanting to do, i've been part of two boards of investigation, we've got to look more broadly on this. i'd like to see more evidence to corroborate the area we're looking at. what i mean by that is if we draw a line to the last transponder space in the south china sea, draw a line to the search area, it's out of bounds of a 777's endurance anyway. it's going to be a relatively straight line, it doesn't have the fuel to go off course. that would have had to have gone across singapore or relatively close which has one of the most sophisticated ground-based air defense systems in the area. it would have had to go across indonesian air space. if it's doing that it's crossing a sovereign territory. my original point on how sensitive sovereign territories are to having up identified traces go across their international boundaries. >> so what are you saying? >> rather than putting all the eggs in one basket and relying on all these aircraft to come up with evidence to relate to it 370, i'd be going back to indonesian, singapore. singapore is one of the busiest air fields in that part of the

world. going from australia to europe. it has big radars. i cannot understand how every aircraft in the air space, squawking aircraft, if there's a big 777 radar pulse that is going across the overhead, why would that not be investigated? >> and that is the big unknown in this whole area. that whether or not it was indonesia, whatever country it was. this plane from its last known transponder position, 119, about $a left-hand turn, according to the malaysian authorities, went back across the entire peninsula of malaysia, went across or around the top of indonesia; then out that way. >> i dispute that only in the fact that, let's go back to the transponder theory. a transponder has position, altitude, speed, tcas. outside 200 miles from the coast using secondary radar you cannot see a transspnd responder. >> i'm sorry, you're saying what

they're doing at the moment is futile, they shouldn't be doing that? looking in this area? >> no, no, i'm not saying it's futile at all. what i'm saying is, let's not put all our eggs in one basket. >> they're not. >> by having all of these aircraft -- >> they're not. >> pretty much they are. i mean, they're doing it -- >> absolutely they are. >> most of the resources, he's right, most of the resources are being dedicated to this southern indian ocean -- >> i'm not saying they shouldn't be because there is just suffevidence there to warrant a search and there's not enough evidence to have concrete activity. what we should be doing is looking outside the box and looking fare other ways to corroborate that area. >> if you have those -- >> stand by. sorry. stand by everyone. one expert says there are three different ways a plane can land in water. we're going to talk about that with our panel coming up. you're watching live coverage of "the mystery of flight 370." for paul ridley there's no substitute for advil. it's built to be as fast as it is strong

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welcome back the special coverage. search teams sandwiches between a cyclone to the north and severe weather to the south. i want to bring back the panel to answer your questions.

ma mary, david wants to know. isn't it possible that countries to the north may not report the flight plan because they would embarrassed or do not want the attention? >> the way that we would look at it is to consider whether or not the culture is impacting on people calling in or people reporting information. every time you have a case like this, especially one with such international consequences that does have to be considered and does have to be factored in in terms of what can we do, then, to encourage people to call in. how do we get around that if it is a barrier? >> richard quest, this one is from hannah. hannah says in the past debris from satellite have been taken

three to four days to be released. why? clearly it won't be there anymore. >> do they overshoot where they go? >> three days ago there, we now know what the current is, therefore we estimate. again, it is an art as much as much as a science. people like yourself are the real experts that's working out where that would be. >> you're right. they have to follow the debris. they are putting in marker buoys and follow that as best they can. if they find something they will have to backtrack. >> i have a question for you, christine. why is there no debris washing up on any shores. it has been two weeks. >> it would be ideal if we had something that we could say, okay this is coming from this area. but we don't know if this plane is even under water. so we don't know what this debris is.

it could be ocean junk. we don't know. and it's very frustrating. but we don't really know where this plane is at this point. it's all speculation. >> and people are wondering, as you've said, this is credible. but -- >> very credible. >> but everyone is spending a lot of money and resources and so far, you know, nothing -- >> the exact words, forgive me. and speaking on the search, prime minister tony albert said on sunday we have now had a number of very credible leads. >> which leads us to -- >> very credible leads. and that is disturbing. >> bill savage. are pilots aware of what is in the flight cargo hold? they have some idea. but what cargo concerns might pilots have the most? might concern pilots the most? >> the hazardous materials is

our biggest concern. explosives, etiological agents. and the pilots get paperwork concerning that. >> thank you very much, everyone. stay there. thanks for sharing your expertise this hour. as the families wait for answers you are about to see the faces of flight 370, the passengers, the stories about them and their lives. this is a cnn special live coverage. if you wear a denture, touch it with your tongue.

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and finally to the heart of why we care so much about this story, not for all that is unknown or the search. it's about 239 people who have not seen, hugged or talked to their kids, partners, soulmates or friends. wife and mother of india is the executive secretary of the international collective in sport of fish workers. her husband let cnn see the note he wrote. i remain focused on what we have at hand by way of information and stay with the knowledge that

she is strong and courageous and her goodness must count for something somewhere. i carry firmly that the faith that the forces of life are eternal, immutable and every present to keep the drama every moving. and in the ultimate analysis i am neither favored nor deserted, no one ever is. paul weeks a mechanical engineer was on his way to a mining job in mongolia. the father of two young sons. the oldest just three. he left his wedding ring and watch with his wife in case of the worst. >> they had a bit of an incident earlier on or just the year before. and they just discussed what they wanted to do and for some reason before he left to go to mongolia he decided to leave them both behind and said to his

wife that the oldest child should get his wedding ring and the youngest should get his watch if something happened to him. >> others on flight 370 were traveling for pleasure. this couple had been on vacation in vietnam heading home to beijing to their two young sons. this couple were taking the honeymoon they promised themselves for a long time. and there were the lawtons and the buerre rows, two couples, four friends seeing the sights abroad together. three americans were on flight 370. philip wood and the other two are children, brother and sister, both under the age of five. without waivers from the girl's families there is nothing they can tell us about the children expect they are among the 239 expect they are among the 239 missing. -- captions by vitac -- www.vitac.com

good evening, everyone i'm don lemon. thank you so much for joining us. this is a cnn special live report on the urgent hunt for flight 370. the sun is rising over the southern indian ocean. as we come to you live tonight the search for missing flight 370 is resumg. crews are back in the skies heading to this part of the world with several new clues. one of them is this, an object floating in the search area captured by chinese satellite. it is