was awful fearful of noises, of intruders in the night, she would gather her three people in the bedroom because his father often traveled, wasn't at home and she also kept a gun underneath her pillow. oscar pistorius, if you'll remember in his affidavit said that he kept his firearm underneath his bed. now in day two of his testimony it will be key, how and why did he use that firearm on valentine's day. erin, back to you. >> robin, thanks very much to you. thank to all of you for watching. anderson starts right now. going. it's 8:00 p.m. here on the east coast of the united states. 8:00 a.m. off the coast of australia. the search narrowing down. australia authorities making the announcement an hour ago with time ticking off on those batteries. all eyes are on sonar scopes and ears are directed to a much more

focused area. now that after sounds were heard in two locations, several hundred miles apart over the weekend. sounds that might, might be sonar locator ping from the 777 flight data and voice box recorders. they are trying to pick them up again. if they are from the plane and not a false hope they might be dying pings. batteries don't last forever. flight 370 has been missing for almost 30 days. flight 370 may have taken a route into the indian ocean after it made the baffling turn. this flight path taken around indonesia and raises the possibility the aircraft was being piloted or programmed to avoid radar. like everything else so far these latest leads are t

tantalizing. >> reporter: after weeks scouring the indian ocean, this is the best lead yet in the desperate search from malaysian flight 370. >> it's been detected signals consistent with those emitted by aircraft black box. >> reporter: this is the remote area nearly 1,000 miles off the western coast of australia where officials say two sets of electronic pings were detected by an australian ship. the pings were heard in waters that are nearly 15,000 feet deep. or more than 4,000 meters down. the first pings lasted more than two hours, the second just 30 minutes. but could they be from the ship? to find out, rescuers have this robotic submarine with cameras attached on board. which can be deployed in hopes it can get a visual. >> essentially this is being

done without finding any wreckage thus far, and i think it's quite, quite extraordinary and while i would like to see now us find some wreckage because that will, that will basically help solve the mystery. >> reporter: but the pings picked up by the australians weren't the only ones detected. a chinese ship said it too briefly detected electronic pulses. but those came from a different search area all together, 300 nautical miles from the australian find. chinese television showed images of the crew using a basic sonar device on a small rubber boat to pick up sounds. given the distance between the two locations could both be from flight 370, australian officials say it's possible but unlikely. a new potential flight path only complicates the picture. a senior malaysian government source telling cnn the aircraft

skirted indonesian airspace as it veered off course saying the plane may have taken a route designed to avoid radar detection. >> so, while objects are also spotted on saturday by chinese air force search plane has there been any verify occasion whether the objects might have been the right ones? >> reporter: no there hasn't been. they haven't given up any search for debris. but since the chinese issued those photographs and announced they found those white objects or spotted them from one of their aircraft, nothing else has been heard. we've seen a lot of debris that's been spotted and ruled out. we saw ocean tankers, and things that end up in the indian ocean because of the currents. this may fall into that category. certainly they don't seem to be a focus of the search at this point. >> matthew, thanks very much. the process now centers on

listening for trying to reacquire the source of those two hours and 13 minutes of pinging noises. doing that before launching a much longer effort of taking sonar pictures mile by mile of the ocean bottom. we want to give you and explanation of what's going on. we go commander william marks. commander correct me if i'm wrong it's my understanding on sunday over the course of the two hours, the pings got stronger then weaker. did that mean the ship was closer and then farther away. >> at that point those were very encouraging signs and now we're being more optimistic. then a couple of pings gave us some optimism. first, that the signals did get stronger and stronger and then we crossed where we thought was the line to it and then it got weaker and weaker. that's consistent with how you would expect it to be when you get closer to the signal, then

you pass it and then you get further away. when that happens that's encouraging. what you do is you do a very slow turn and you get on that course and do it again. hopefully you get, still get a strong signal and you get another set of lines of bearings and where those cross that gives the location. so what was the good news is we had about two solid hours of coverage on the one course. then we did a slow deliberate turn to get on the reciprocal course. we added almost another 15 minutes and that's when we lost the signal. so we were in the process of getting a good triangulation when we lost the signal. >> you don't want to make a mistake on this. is there any other truly

feasible explanation for two hours and 13 minutes worth of pings. it could be a whale, something like that? is it feasible for that length of time? >> we're thinking the same thing. why would you have two hours of coverage, turn the ship around on the reciprocal course and have another 15 minutes of coverage. where does that go? the way i look at it, it's not so much a surprise that we haven't required it, it's a surprise that we even acquired it at all. to give you a little bit of timeline perspective, if we don't have a good location from the black boxes, the search would be by sonar. it's not a matter of days. we're talking months. could even be years potentially. >> would you have a recommendation and if you would, are you comfortable saying what it would be in terms of a timeline? >> you know, i think we're not

in a rush to get the sonar going. you know, there's a potential that the battery can go on for another couple of days, really, can even go on for another week or so. you really don't know. and then once you take your locator out and once you stop using it and that black box is no longer pinging it's pretty much done. so, the time to maximize the effectiveness of the cpl is right now. i don't think we're in quite a rush to get that out of the water and get the sonar in the water. when we do search with the sonar, there's really no limit to how long that can keep going. it just takes pictures of the ocean floor. >> appreciate talking to you. thank you. >> thank you. let's bring in our panel, miles o'brien, david gallow and

aviation correspondent richard quest. richard, is this the best lead that there has been in this entire four weeks? >> absolutely. no question about it. just lutzen to angus houston last night. very promising. the best lead we got. whichever way you cut it what they are dealing with now is the only lead that they've got as it has been throughout >> you're zeroing in on this one search area. >> the northern part of the southern corridor. they know that from the inmarsat data, all the work that's been done by that international working group on the hand shake. you got a seefrs haries of hand come together. we've talked about this jigsaw so often. the problem is that piece keeps falling on the floor and you can't keep finding it and the real risk s-of course, it might be too late and then you're in for this long hard sloth of searching the ocean.

>> what i don't understand if they already have, you know, more than two hours of these pings that went up in volume and then reduced in volume which indicated they were getting closer then farther away they have a sense of the coordinates of this. if they don't find, hear any more pings don't they have good enough location that they can send in these under water vehicles? >> already, anderson they cut down the size of the haystack to something manageable. what they would like to do is get it down even further. like commander marks says they don't want to waste time while the battery is still operating. >> you just talked about this before how the ocean can play tricks on you with sounds. realistically, is there any chance this is a whale? any chance this is a natural

phenomenon? >> i have some friends that say it's possible, some biologic noise. it's not impossible that it's biologic noise. also underwater vulcanism in that area. it's a very volcanic area. there's hot vent, underwater geisers. none fit exactly. the best possible fit is the pingers on the black boxes. >> it's incredible to me they might have found the black boxes but yet not a sled of debris has been found that's been confirmed to be from this plane. do you know of any other cases where that's happened? >> no. this is the complete backward scenario that we would have expected. we would have expected to see a floating seat cushion and then we would have had oceanographers

figure out where it came from. it's extraordinary they stumbled upon this pinging. this is a testament to the clever engineering that folks at inmarsat satellite company were able to do in creating tracking information from a satellite which is not designed to provide tracking information. it just so happens one of these arcs they drew, last reported communication with the satellite is right -- you can see it there, that red line is right over the spot where they are hearing the pinging. this is lucky but also, you know, luck that is based on an amazing piece of engineering. >> richard, the pings heard reportedly by the chinese vessel over the weekend some more than 300 miles from where the navy is looking, is it possible that they are actually related? >> no. well -- >> unlikely? >> the angus houston said it is

unlikely. he's being diplomatic. every expert i've spoken to says, no. i guess -- we can create a scenario that has those pings relevant. but we could also create a scenario in the world of fantasy. and at the moment we have to sort of basically call it as it seems to be. what the experts are saying no. unless any of my colleagues, miles or david want to put their neck out in the opposite direction i would say it's not relevant. >> miles, you agree with that? >> i think it's a red herring, anderson. as much as anything that was a little handout after all they had the cameras there. that was a piece of photo opportunity to send some images back to china to let people know they are doing their best to do some searching. what they heard is a different matter. they had a pinger aboard that

vessel which helped them test their vessel. but you're not supposed to put it on the boat when do you a real search because you could end up hearing yourself. just looking at it sharing the iphone buds and the pole, given the relative sophistication we have to defer to the ocean shield. >> we'll take a quick break. we'll have more. how much longer can the pingers last? we'll go straight to the source on that. >> as soon as it hits the water it starts pinging. it's designed that way. >> also ahead i want to take you back into the simulator to explore this idea the 777 was on a course to deliberately avoid radar coverage. does that automatically mean that there was a human at the controls of this plane? we'll be right back. peace of mind is important when you're running a successful business.

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to help reduce the risk of another one. if you've had a heart attack be sure to talk to your doctor before you begin an aspirin regimen. . our breaking news. today's search area is dramatically narrowing. crews racing to hear what they heard over the weekend. what we're talking about is a lot of the technology for picking up these pings, things like the toe pinger locator, hydro phones, passive sonar, all hi-tech ears for picking up certain noises underwater. we'll take a look at the noise makers. we'll find out how they work and what they sound like. >> reporter: if search teams in the indian ocean are hot on the trail of flight 370 black box this man would know it. he's president of the largest manufacturer of black box pingers. >> it's activated by this water

switch. on this side is the battery. >> reporter: he invited us to see where they turn out these black boxes. he believes it was one of thinks team's pingers on the flight. authorities allowed him to listen to the pinger sounds just detected over the weekend. you actually heard the pinger sound that the ship picked up? >> they sent us some data. >> reporter: how did it sound is now >> like one of our pings. >> reporter: what does it sound like? listen. so it's stant. as soon as it hits the water it starts pinging. >> it doesn't take a lot of water to start pinging. it's designed that way. >> reporter: if this were in an airplane and hit the ocean this would start immediately this pinging sound. >> if it was not damaged in the incident you saw how quickly it began to ping. >> reporter: in perfect conditions the pinger's pulse

can travel 2 1/2 nautical miles. cliffs and vegetation can get in the way limiting that distance. before any beacon is shipped from here its sound output is measured in one of these huge 50,000 gallon tanks. it's lowered into the tank through the floor above. surround by hydrophones, ultrasonic readings are recorded on this computer. this pinger is twa flight 800 which went off the coast of new york back in 1996. this company made the pinger. after it was recover they got it back. this one was found in shallow water but they are designed to function in water as deep as 20,000 feet. what about the frequency? crews at sea picked up a slightly lower frequency than the pinger's standard frequency of 37.5 kilohertz. water temperature can shift the frequency. it's so distinct, right? there's nothing else that would

sound like this with this frequency. >> 37.5 kilohertz was selected because it is unique from the background noise in the ocean. >> randy joins us now. you've been working with these beacons all day. how much water does it need be in before it starts pinging? >> reporter: they can survive in depths of 20,000 feet. what we want to show you tonight is how sensitive they are. we have this tin cup here. it has a moist paper towel in it. no water in it. this is one of the pingers. we have the tester right here. i'll be quiet for a moment as we put this in and just with a moisture paper towel listen to it activate right away. [ pinging sounds ] you hear that right away. it starts to work. we also want to tell you tonight we talked to the people here who make these and said we talked a lot about the 30 day deadline for the battery to run out

because it only lasts 30 days. they said there's a three to five day grace period so that was good news we may have a few extra days. they talked about the fact -- and they want to make this point -- just because they think they heard this sound from one of their pingers down toings it doesn't mean that the plane or pinger is right there. it radiates so widely. it could be far, far away. so they will have to narrow down the search area these search teams to try to fine it. >> i appreciate the demonstration. i want to bring back david gallow. and former department department of transportation inspector. you believe these pings are from black boxes. is there too much evidence for it to be anything else? >> absolutely. without a question in my mind they are. especially since we've gotten it from source we have. the china didn't seem very

credible to me because of the equipment they were using and highly possible they were doing some testing on the pinger. i didn't give that a lot of credibility. now we got it from this machine from that pinger locator i'm very confident. >> david, even though the frequency that they heard was slightly different than the normal frequency for these? >> well, yeah. remember that there are 37.5, but even at manufactured they have a tolerance level of one frequency, one kilohertz. so, we got that to think about. in addition as the battery gets lower its potential, has potential for reducing the frequency sound as it relates to the decibels, 160 decibels but as they decrease, they can actually play with the frequency that comes off of it. there's just nothing in that range especially something that would be clicking every second

library that. just nothing in the natural environment that would create anything even similar to that. >> david gallow, let's assume they don't hear any more pings. they just have the pings they got on sunday. randy said these can be heard for two plus miles. to a layman that doesn't seem like a huge amount of area to cover with sonar under the water, with side scanning sonar and underwater vehicles. is that naive to think that? >> no, it's not naive to think that. seems like a small amount. under the sea there's no gps navigation. it's pitch black. fairly hostile environment. where they are working right now is on the north facing side of an underwater feature called the wallabe plateau. that place will be covered with land slides and steep cliffs. working in that area even though

it's a limited haystack is less than easy. it will be fairly tricky. >> on air france flight 447, david, you had a general idea where the plane went down. you found debris, the pingers on the black boxes never worked. still took you months and months of searching over two years to find the wreckage, correct? >> took two years with all the mobilization and things like that to get back out there but all together on the water about ten weeks. actually two months of that, eight weeks was spent almost on a wild goose chase because of a bad model for retrodrifting. so drifting debris backwards took us to a bad place. you know, it's definitely doable. the team out there, phoenix international are superb at locating black box. >> so that's interesting, david. you're saying really on the time on the actual water was ten weeks to actually find the wreckage from the time you found the debris, not including all

the bureaucratic time spent getting approvals, getting permission and the like. >> took a year to get out there after the tragedy. we spent two months that first year in the wrong part of a haystack being led there by the retrodrift models that put us out there. took us another year to get out there. within it a days during that second phase we located the aircraft. >> that's interesting. a lot of people focus on that two year search but a lot of that is bureaucratic delays. the fact that no debris has been found. does it tell you something about the way the plane may have entered the water? >> well it can. it also may say that it's been so long that the debris was out there and storms have come through that the debris that did float has gone away. but, you know, in historic accidents there are cases where planes have gone down and remained largely intact.

usually they are like military planes, some world war ii planes that were found largely intact and light planes. light planes go down, land on the water, don't break up and sink. but big aircraft like a 777, it's very hard to bring them down and there's been cases where they intentionally tried to land on water and usually on the ocean a wing will catch a wave and break up. it's very unusual. i won't say it's impossible but this would be a first for modern jet line fer it remained intact. >> david, if the boxes are recovered, who actually takes control of them? would it be australia, malaysia? >> australia would take control of them. right now they are under a mandate by the joint committee to have everything that's located come back to australia. so australians would contain that and then the malaysians would decide where things go from that point but there's a central locating area for all debris including the black

boxes. >> a lot more to talk about for more on the story. go to cnn.com. i want to go into the 77 flight simulator exploring a riddle. can malaysia flight 370 skirt indonesian airspace intentionally because whoever was flying the plane was trying to keep it being detected from radar. we'll look at reasons why. what if they do find the black boxes or anything else at the bottom of the ocean we'll take a look at the technology that will let search teams recover wreckage from incredible depths and we're talking about 2 1/2 miles at this point.

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the mystery of malaysian airlines flight 370 spawned new mysteries. one is the latest from a senior malaysian government source telling cnn the plane skirted indonesian airspace as it veered off course and went off the grid. that source says whoever was flying the plane also a mystery could have been trying to avoid radar detection. what would that look like and what are the implications here? if this plane were indeed to have skirted indonesian airspace give us an idea how this would to be done from the cockpit. anyway this would not have been done by somebody actually flying the plane? >> reporter: there are a couple of ways could you have done it. yeah. manually. let's start with the really

convoluted way and mitchell would tell us that, you know, you could enter in the way points and we figure there are how many way points to make this route go the way we think they went? >> i put in 18. >> reporter: he would have entered them through the flight management system. it's a rather big, what looks like a, you know, computer. but here it is played out on the screen. this sues, the triangle. this is the path we're following, go to beijing. right here. we know everything changed for this flight. that's when you would have had that hard turn to the west. that would have sent the plane going over the northern part of the malaysian peninsula. then this part here, anderson, this is the outline almost of indonesia. it's just offshore, can't tell exactly how far but skirts on the outside above indonesia and then, of course, we know the aircraft went around.

was that done to get around from radar? we don't know. could be. you can do it -- >> a turn of the knob. >> reporter: way points to guide the aircraft by turning a knob and you can see how tells aircraft moves. lastly you can manually try to fly that but pretty taxing. that's how you could do it. the only thing i would point out, we month the indonesians say they did not see this aircraft that night. whether that's true or i don't know. we do know other nations saw it, specifically malaysia say they saw 370 and the thai military say they saw 370. that's how they know it supposedly what we just demonstrated. >> i don't understand. entering 18 way points to me when i hear that this may have skirted malaysian airspace if that's true to me as a layman it seems like somebody must have been under the controls of that plane. >> no questions about that.

malaysians have said it was deliberate. they didn't say nefarious. somebody did control the maneuvers that plane made that night. marty, i got a quick question for you. for you and mitch. how long did it take you, mitch, to put in those way points, and is it possible you could have when programming before the flight you could have put it on the scratch pad but only executed once you were in the air? >> it took me a minute-and-a-half, richard, to put in those way points. >> reporter: a list of them. >> it's quite a long time. could it have been done beforehand? it could have in theory. the other pilot would have noticed it on the screen. it would have come up on the navigation -- >> reporter: what about on the

scratch pad? >> the scratch pad son lie enough to put in maybe your first and last name. 18 way points wouldn't fit in the scratch pad. >> reporter: the other thing i'll point out it's a long way this plane deviated. it to be with equivalent of going from new york to chicago. almost 800 miles out of the way by this course. >> and, miles, if it did, in fact, skirt indonesian airspace the whole idea it was trying find some place to land or it would nullify that whole concept. >> yes. that concept goes out the window. if you're in an emergency situation and not doing this, this is a deliberate act, forced by somebody or the crew itself was taking the action. i'm skeptical about, first of all if you're trying avoid radar the reason we know about this route is they got it on radar. it wasn't very successful. the altitude we picked as 12,000. we don't know that's accurate. if you want to avoid radar you want to be down 100 feet or so

literally. also why would they fly right across malaysia if the goal was to avoid radar. malaysia has radar too and this is a primary target. they don't know what it is without a transponder on it. i wonder if this was an effort to make it difficult for people to use cell phones by staying over water. that's an option as well. >> mary, how about you? you're skeptical about this flight path mostly because you don't think indonesia has the ability to say 100% the plane didn't cross its airspace. how so? >> that's right. i want goes back to the old saying how do you prove a negative. i did some research on the indonesian airspace and what was very interesting is indonesia in the indonesian press contrary to what the government says, the indonesian radar is very problematic. 70% of them don't function well. the military radar, according to some articles was so bad they only operate 12 out of 24 hours

a day. one article said civilian radar is absolutely impossible to pick up a civilian plane. and they have a new process going where they are rebuilding their radars and it won't to be done until 2024. so, to me, i have to question how they could say well we didn't pick it up on radar therefore it skirted us. perhaps they didn't pick it up on radar because their radar is antiquated and very bad and one article said it was a point of national pride it would be an embarrassment if they hadn't picked up the plane. maybe it's a problem with embarrassment and lack of radar rather than affirmatively say -- >> that's a good point. >> the reason we know this track that it took or the strong evidence of the track is the thai radar. that radar that they did pick and the hand shakes. so, you know, we've actually known that it did this since we got the first inmarsat document

back on the 20th of march. we know it took that route. by the hand shakes, by thai radar and what we've not known and what nobody has been prepared to do now is nail that to the mast and say it proves x, y or z. >> panel thanks. up next we'll take a look at the technology that could be used to retrieve wreckage from these incredible depth, depths that no human can go to. we're looking at what technology exists. also tonight oscar pistorius taking the stand in his murder trial. we'll bring you inside the courtroom. [ hypnotist ] you are feeling satisfied

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the pingers from the plane's black boxes could stop transmitting any day now. the battery is designed to last 30 days give or take. signals have been detected already. could it be the most promising lead yet. if those signals turn out to be from flight 370 i want to take a look what happens then, how wreckage is pulled from the bottom of the ocean. the technology is fascinating. >> reporter: this is what it looks like trying recover an

airplane in the ocean. you're watching a navy salvage team recovering a wreckage. divers are maneuvering between pieces. >> the u.s. navy has a helicopter. they have the capability. >> reporter: retired navy captain has been involved in at least 50 ocean salvage operations including twa 800 and swiss air flight 111 which crashed in 1998 off the coast of nova scotia. those were both in water much shallower than the indian ocean. but the navy has remote underwater vehicles designed for deepwater salvage operations. they can go as deep as 20,000 feet. but the deeper the recovery, the slower the process. it takes about an hour for every

1,000 feet you need to descend. lure going to 11,000 feet you can count on 11 hours. >> reporter: it's pitch black at those depths so the vehicles are equipped with underwater lights and sonar. they are southeastward by two operators on board the ship above who use instant feedback from the salvage vehicle's cam tro -- cameras to direct the robotic arms. >> they can move right forward, aft, hover a sign. >> an unmanned underwater vehicle found the debris field for that flight, 13,000 feet beneath the surface. the engines were pulled from the ocean floor. if flight 370 is found, search teams are prepared to do the same. >> if it's small like the black boxes you can put a little

basket on the arms where it can be picked up. >> reporter: the remote underwater vehicles can only carry 4,000 pounds. anything heavier like a large piece of the fuselage will have to be attached to a cable and fouled the surface by a crane on the ship. keep in mind this could be happening miles below the surface. incredibly difficult task. still, no doubt salvage teams will keep their eyes peeled for the black box hoping to give much need answers first. randi kaye, cnn new york. >> a riveting day at the oscar pistorius trial. >> i was simply trying to protect reeva. i can promise that when she went

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exhausted, he sounds exhausted. with that oscar pistorius's much anticipated appearance on the stand came to an end. after nearly two hours of testimony the judge agreeing with the defense that his day of unreserved emotion deserved and early adjournment. >> i would like to take this opportunity to apologize to mrs. and mr. steenkamp, to reeva's family, to those of you who knew her here today, family and friends . >> i can hardly hear you. >> reporter: even before beginning his testimony a teary eyed pistorius turned away from the judge and towards the mother

of reeva steenkamp. >> i wake up every morning and you're the first people i think of, you're the first people i pray for. i can't imagine the pain and sorrow and the emptiness that i've caused you and your family. >> reporter: he told the court he still replays the night he shot and killed reeva steenkamp. >> i wake up and i smell, i smell, i can smell the blood and i wake up to being terrified. >> reporter: clearly laying a foundation for symptoms of post-traumatic stress disorder. this speaks to the manner in which the extent to which the fence of that night in question profoundly affected him. pistorius says he's on anti-depressants and sleep aids because he's scared to sleep and has terrible nightmares. the defense also building an image of pistorius as a young boy growing up afraid. his mother often alone with her children, acutely aware of south africa's high crime rate. he remembers her calling police in the middle of the night when

she heard noises. >> she would come at night and call us to sit in her room and many times we would just wait important the police to arrive. >> where did she keep her firearm? >> she kept her firearm under her bed, under her pillow. >> pistorius is still on the stand tomorrow. do you know what he's expected to talk about. >> reporter: today was all about his character. he painted himself and the defense trying to prove that he's remorseful, that he was vulnerable, and he was scared person. all of that playing into their case. now, of course, crucial is his testimony on day two has to be more about the fact, about the timeline, his version of events. his story. what actually happened that valentine's morning and that's what's so crucial because this is really his version of events, the timeline, because he's

really the only one who can explain what happened and, of course, anderson, after that we're going to hear the cross-examination, the prosecutor is known for being quite a bulldog they say here in south africa, he'll try to poke holes not only in the consistency of his story but in the authenticity of it. we're not talking about just the facts but the way oscar pistorius delivers himself, holds himself, whether he's credible, whether he's believable. >> robin, thanks very much. we'll continue that coverage tomorrow. let's get caught up on some other stories we're following. >> reporter: a military be official tells cnn that ft. hood shooter ivan lopez felt mistreated by some members of his unit and asked to be transferred. lopez opened fire on the base last wednesday killing three and wouldn'ting 16 before taking his own life. viles broke out today in the eastern ukrainian city as russia

tries to take over a building. ukraine's government blames the ongoing unrest on russia. britain's baby prince george made his first public engagement arriving in wellington, new zealand with his parents. the royal family will tour new zealand for ten days before moving on to awe usa. cute shot there. >> he's a natural. thanks very much. we'll be right back. at your ford dealer think? they think about tires. and what they've been through lately. polar vortexes,

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programming note. tomorrow night we'll bring the story of a remarkable woman. you may remember i met her a few days after the boston marathon bombing. she's a dance instructor and even though she lost her lower left leg below the knee in the blast she told me she was determined to dance again. she said that days after the bomg. when she did she would give me a dance lesson. >> i didn't think i would be here the last time i saw you. feels good to be making progress. >> you're making amazing progress. >> as are you. >> okay. it's embarrassing to watch me dance. but it was an amazing moment to see her dancing. getting there took hard work. hundreds of hours of rehabilitation and physical therapy. we can stop showing me dance. tomorrow we'll bring you adrian's story much of what she shot on her phone. unlike anything you've seen before.

join us tomorrow for the survivor diaries at 10:00 p.m. eastern here on cnn and "ac360" will be on at it's regular time. that does it for us. thanks for watching. set your dvr so you never miss 360. >> have flight 370 searchers rediscovered the underwater signal they are looking for? in mere moments you'll hear from the naval commander who will be the first to know. the world lead. two signals. and then nothing. u.s. navy using advanced technology desperately trying to keep alive their most promising lead yet the man who speaks for turs effort joins u