add place sunlight can't reach. marine biologists say marine life is unlike anything you've ever seen. >> they have to be very cold toleran tolerant. they might not even have eyes. >> reporter: keep going, at 12,500 feet is where you'd find the wreckage of the titanic which took some 70 years to discover. if it were turned upside down, that's where you'd hit the iconic peek of washington state's mount renier. 14,800 feet into the abusiness. if that doesn't capture the magnitude, imagine this. he says picture yourself standing on top of one of the

highest peaks in the rocky mountains looking all the way down and trying to find a suitcase, in the dark. >> that's not good. got a lot of failures here. >> reporter: only a handful of people have traveled to these staggering depths or even beyond. one of them is movie director james cameron. he dropped 35,000 feet or about 7 miles to the deepest place on earth. he's turning it into a movie. >> beyond the edge of your lights, to see the unknown for yourself. >> reporter: the pressure is crushing and very few manned subma rerines can even withstan it. >> there's only half a dozen subs that can go to that depth with a number of countries having that capability. it gets to the point of collapse, it basically implodes. it just crushes. >> reporter: finding the plane

is daunting, bringing it back from the deep, even more difficult. cnn. >> i want to get my panel of experts to weigh in on this to see exactly how they feel about it. mary, have you ever dealt with the ocean depths like this when trying to retrieve a plane? >> not from these depths. there have been many other accidents in the water. like this, it was lost for about a month. when they found that was only about 6,000 feet of water. at these depths, no, there's no recovery like it. >> if the wreckage is found, how are they going to attempt to bring it up? >> what they'll do after they sent down the robot with the side-scan sonar, they've actually located specifically where the black box is, then they'll send down a remotely operated vehicle which has arms. they'll be able to pick it up and bring it up to the surface.

>> i want to bring in now eric. he's at the university of new south wales wales. at these depths, what is the ocean really like? >> well, it is pitch black. it is because ocean water doesn't let light through. if you go slightly below the surface, sure there's still a little bit of light. but as anybody who's been diving knows, the further down you go, the less the light goes through. as soon as you get like 300 feet or so below the surface, nothing gets there there. this is darkness only. >> they said that silt and sediment would be a problem. can you explain the ocean ooze or the sediment to me and to the audience. if the plane is retsing down there, what is the sea floor like? >> so, the sea floor down there is a few feet, maybe 30 feet of what we call marine snow.

it's ooze when it's on the sea floor. essentially what it is, it is literally snow. it is tiny particles that animals -- dead animals, dead plankton that all fall down very slowly. over centuries, it has created this layer of ooze which is very fine, very thin, easily distorted. >> at the these depths, could currents be moving the wreckage? would you expect debris to still be on the surface at this point? >> at the surface, we certainly expect debris to be there, right? anything that flows even though we had the hurricane come through the area, that might have stirred up something. there's still thinks floating on the surface. at depths, probably most of it doesn't really move anymore. the currents down at depths are

much weaker than at surface. if the plane went down in an area that's actually sloping, because we know there are still hills there. if there's a slope, then slowly over time with a little bit of current, things could actually roll down the slope and get further and further away. >> how does that affect the sound then if it's rolling down the slope already at a very deep depth? >> yes. so that makes it even more complicated to hear it of course. parts of the plane might be slowly rolling down. it doesn't go fast. >> it's richard quest here. if the plane or large parts of it went down relatively intact, as any parts from within that would float, seat can you shuns, life rafts or anything like that, how high would they float? would they reach the top or in

the middle? >> no. most of it would probably be at the top initially. but then some things like life rafts might get water locked and lower. they might slowly go lower. everything that is really floating is still floating. things might break up other month and years. you get barn calls growing on it. but everything that was floating when the plane crashed is probably still floating. the reason we haven't seen it is i think mostly because we've been looking in the wrong place. where they are now searching for the plane wreck is so far northward that the current moves most of the lit ter towards the west, towards africa rather than towards australia. the search had been towards australia. so a lot of the floating debris

is there, it's just in a completely different area than where we've been focusing on. >> who -- someone said that it may not be floating at this point. was that david gollo? i'm not exactly sure. do you agree? >> i do. i cannot imagine a situation where that you wouldn't have anything that was floating to the surface because there's so many parts of that airplane that would find a way to get to the sur fats. it's always been a puzzle for me. >> david, do you agree that it would still be floating? >> yeah. absolutely. if you think about the construction, even of things as simple as the drink carts, they're made out of honey comb structures which are pieces of aluminum and plastic epoxyed together. it would take a long, many, many, many years for that thing

to degrade to the point where it wouldn't float. >> that's just odd. maybe the debris is further south or what? >> we're just not looking in the right area yet. >> all right. this is all so, so, so bizarre. thank you, guys. thank you panel. everyone else stay with me. how are the families handling these latest developments? next, i'm going to talk to the husband of a flight 370 passenger. why relocating manufacturingpany to upstate new york? i tell people it's for the climate. the conditions in new york state are great for business. new york is ranked #2 in the nation for new private sector job creation. and now it's even better because they've introduced startup new york - dozens of tax-free zones

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it has been more than a month of waiting for the families of flight 370. joani ining -- joan -- joining now is the husband of a woman an board the plane. how are you holding up? >> i think reasonably well. it's -- i think the reality of what stairs at us for the coming months and years is sinking in a lot more clearly, a lot more deally. and so it's been that much harder in the last few weeks to deal with it. so it's not been easy. it's been tough. it's -- of course, looking at

the news that one's hearing and not knowing or the dread of a call confirming and giving it a sense of finality. i don't know which is worse. >> you said a lot more clearly and a lot more deeply. can you explain that to us? what do you mean? >> i think the early weeks there was a lot more adrenaline and one was visited by so many people and there were so many calls and there was just enough time to be there as much for one self as one had to be for others. over the last couple of weeks, the house is emptied out. it's quite bare. it's just me and my mother. we are looking at a fairly empty barren house. some of the routines that had shaped our lives over the years have simply just gone upside down. there's been a certain routine

that we have been used to and a certain sense of respect of space that we inhabited and we engage from. now all that has changed. we're looking at a wholeny movement, i suppose, in life where we have to reconfigure, perhaps reunderstand how one will have to conduct one's life afresh. there's just -- the scars are a little more vivid now, a little more accessible. the trauma a little more sharper as one lives and relives what the month has been. to me, the single most source of grave apprehension and dread is the very part of an end at sea. it's been a nightmare scenario. unfortunately, something that's perhaps come true for my wife.

i just can't bear the thought of what that might have been. >> i'm going to tell people about your wife. your wife was on her way to a u.n. conference. she did lots of volunteer work. she's a very good woman. your daughter, she decided to go back to college. >> that's right. >> you said you're not sure if this new information, what to read into it, because if there's fie facility, that is a worst case scenario for you. what do you make of all of this, hearing of the pings, not hearing and hearing again. there's more hope in finding some sort of debris, are you paying attention to the press conferences and the newspapers or is it just too much? >> i keep pretty much the same routine. i watch the press conference. i listen to it. and part of me marvels at the

distance that science has traveled. a part of me hangs in there to see what might eventually come of all this. in my mind i'm fairly clear that as the days have gone by the probability of a happy ending has diminished if not extinguished. i'm not so sure i have great expectations of anything that's happening right now. finding any debris brings up is the -- is a certain finality, a certain conclusive end to a story that began a month ago. life, in any case, is never going to be the same again. i can't imagine that you can just be back to where things were a month ago.

there's no possibility of a reset. >> i have to ask you this. you had great advice for everyone, especially all of the families involved here. and you said that you were using, i think you said yoga, your knew -- recent experience with yoga to help you get through this. you're not there in beijing. you're not there in malaysia. it seems to me that you sort of resign yourself to the fact of the worst possibility. so then what do you say to families here? is it time to move on? are you going to do some sort of service for your your loved one? what's your advice? >> first of all, what i -- what i tried doing was a formal meditation. i wouldn't call it yoga as far as that. see, i didn't go to beijing for

just one simple reason. it didn't seem to serve any purpose. i'm not better educated by being there and i don't aid the investigation by being there. what being here in my hometown, in my home has helped do is to not getover well med by the sea of emotion and anger and frustration that is quite natural when, you know, we assembly together and we have our own stories and our own sorrow that simply doesn't go away. from that perspective, i think it helped to not be there. but it is not -- one feels for all these people. i've watched on tv from time to time how difficult it's been for them. i can't say what they should do. i -- i'm -- i think i said this before. i'm not one who lives great store in miracles or great use

for hope. i think there are -- we go with the reality as is and we go with whatever it is that is available and present in front of us. we go with a certain skepticism and doubt and intense scrutiny of the facts as are presented because, you know, there's always the seekcy and duplicity sometimes. >> right. >> and then beyond that, we just go with whatever is the reality that one is willing to make peace with. >> right. thank you. you're a very brave man. the whole world is thinking about you. we appreciate you. >> thank you. thanks for your time. we'll be right back. [thinking] is it that time? the son picks up the check? [thinking] i'm still working. he's retired. i hope he's saving.

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the search area has narrowed significantly. but the hardest part of the hunt for flight 370 may still be ahead. what happens after it is located? how do we bring the wreckage to the surface. jeff, the next search in this would be auvs.

they say they don't want the excess noise in the water. >> this is their best chance to find these pings. they've located them in an area about 12 miles across. it's not small enough yet. batteries might still have a little bit of juice left in there. so they really want to narrow it as much as they can before they commit the auv. it's a much slower way of scanning the bottom. it takes about six days to do with the tow pinger locator can do in one day. if they go a couple days without hearing anything, i think it's going to be time to go with the auv. >> jim, how long could all of this take? >> it could take weeks, months, and i'm sorry to say, years.

>> may ry, they want to bring every piece of the debris up obviously. is that the way they do with other airplanes, reassembly it in a big hangar to try to figure out what happened? >> it's necessary to try to figure out what happened. often you can figure out why a plane crashed from the maintenance data and the flight data recorder. for example, the reassembly of tw 800 is because they simply couldn't figure it out from the black boxes. we don't do it unless you just can't figure it out. but you do comb through the wreckage that you get up. it will depend entirely what they find on the black boxes. if they have no solutions, then they're going to need to

recover. but that's going to be very expensive from that depth. and i don't know, is malaysia going to pay for it? i don't know. >> all right. we'll be right back. it has exactly what i need for half of what i thought i'd pay. and i don't need to be online for it to work. it runs office, so i can do schedules and budgets and even menu changes. but it's fun, too -- with touch, and tons of great apps for stuff like music, 'cause a good playlist is good for business. i need the boss's signature for this. i'm the boss. ♪ honestly ♪ i wanna see you be brave sfx: car unlock beep. vo: david's heart attack didn't come with a warning. today his doctor has him on a bayer aspirin regimen 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. bob will retire when he's 153, which would be fine if bob were a vampire.

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>> we are back now. richard, we talk about debris. hate to say the debris because it can mean remains when it, right? >> in the case of 447, relatives were given the option if the

remains of their loved ones could be found if they want them to be brought to the surface. some chose to. others chose to lay them there at the bottom as a final resting place. >> a final resting place. that's what many people do. thank you, richard quest. we appreciate it. >> the prosecution continues. oscar pistorius returns to the stand this hour for what could be another grueling day of testimony. we are live in pretoria. >> we had students running about, trying to get out of the area. a lot of evidence of blood on the floors in the hallway. >> another american school wracked by violence. a 16-year-old allegedly wields knives on his fellow students leaving a community asking "why?" plus take you live to perth, australia for the latest on