why isn't the "sea dragon" out there is the question?> once the target is found, deploying manned systems an remotely-operated tethered vehicles to actually recover equipment makes sense. but to deploy the "sea dragon" or any of the other deep submersibles that exist -- and there aren't many in the world that can go as much as two and a half, three miles, very small fleet of deep manned and deep robotic systems. but they are most useful once you have found what you are looking for. they really have a very limited area and they move more slowly than the bluefin. bluefin seems relatively slow compared to an aircraft or ship on the surface, but much faster than sending a manned system down where you really don't know what you are looking for. even if -- and they would have sonar, but, see the bluefin and there are several other pieces of equipment that are designed to do this survey and imaging with sound, but -- and there is a place -- i love the place -- with manned systems and robot but first you have to find the equipment. >> appreciate

most of the passengers on board say -- most of them were chinese, why isn't the sea dragon out there,the question? >> well, once the target is found, deploying manned systems and remotely operated tethered vehicles to operate equipment makes sense. but to deploy the sea dragon or any of the other vehicles that exist, and they are not vm that can go as much as two and a half to three miles, deep manned and deep obje-- robotic systems, bu once you found what you're looking for they really have a very limited area and move much more slowly than the bluefin. the bluefins seem relatively slow compared to an aircraft or ship on the surface, but much faster than sending a manned system down where you really don't know what you're looking for, and they would have sonar. but you see the bluefin, and there are several other pieces of equipment that are designed to do this survey. and imaging with sound. but, having -- and there is a place, i love the place, where manned systems and the robot. but first you have to find the system. >> coming up well after a month, it is very likely that the blac

the alvin, the remora and the sea dragon are compab of being manned.luefin 21 finds the wreckage, then they're going to need these vehicles to get the robotic arms to get the black box out. and the bluefin can take pictures of it, but it can't move it around. >> but the bluefin, remember, right now is just equipped with sonar. that's the first phase. then they have to bring it back up. you mentioned 24 hours, if we get to the phase where we have sonar information. they won't just get the data. they'll do analysis. you can get the payload and change it back to photography payload, as opposed to sonar. there's no use doing it at the same time because there are different depths. don't expect it to come out, swap out the data and put it back in the water. it takes some time to analyze it. >> 16 hours, the thing doesn't move that fast, how much ground can it cover? >> i've heard various things. it depends how fast it's going through the water. the sonar payload, it can do 18 square miles. what i've heard from dave gallo. photography is say little different.

the sea dragon can go down to 4.4 mile or 7,000 meters.p that you have to do is go down to the level in a different kind of vehicle. however, the indication from the australians is that once they -- and the u.s. navy -- is that once they recalibrate they will be able to perhaps redeploy the bluefin-21 and get better i images, get it go to deep, et cetera. >> i hear the same thing. they say they're focusing on the bluefin even though they have other deeper capabilities because they want the sonars, as david was saying earlier, because they don't know what's really down there. visibly it's too dark. there's a big silt factor. they're going to try to stick with the bluefin. that makes sense. does it make sense to you that they are now really putting a sea state on searching for debris in this surrounding area? >> you know, i think so. you mean -- >> not giving up hope, it's not quitting. >> no, i don't think that it is. i think they've got to focus everything they have on that local area. but as far as why they're continuing or why they're no

and of course they can move to the other kinds of vehicles such as the alvin, or the sea dragon, so theyave 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

i forget the chinese name but it's translated sea dragon and that holds the record for under water dives can go down 4.5 miles. >> is there other technology? are they doing the right thing from an investigation and crash stand point? >> we don't know everything that they know. when air france 447 was found, there was three autonomous under water vehicles that were used in a search pattern. so clearly we're not doing it as intensively as we could. but then again, the search area that they're looking at right now is fairly compact. we know where those pings were found, the range of the pinger locator is only about two miles stops. >> this is basically taking pictures with sound. >> right. >> and mapping the floor, rolling sea floor, which investigators say is likely helpful, because there aren't caverns and crevasses where debris could be hiding. it takes 24 hours for a full cycle. it seems like the top pogity, w don't know what happened today that cut it short. there might have been some underwater peaks or something. remember, the device goes along, it's programmed to go a certain height

other kinds of vehicles such as a ramora, alvin or the chinese -- i forget what it is called -- the sea dragon. they have a lot of other things they can call in and i think they will call them in as they feel they have to have them. so, for now it's doing the job. >> jeff wise, the the bluefin did exactly as programmed to do, to come up if it exceeds the depth limit. what happens if the plane is beyond that depth? don't they design submersibles to go a little further than their capabilities? >> sure. they have a certain margin so it doesn't go right to the margin of capability and implode. it has limits. it can't go infinitely deep and the ocean gets quite a bit deeper than it does at this particular spot. in the event it is much deeper than what it has been operating at today they are going to have to call in other pieces of equipment that can go in deeper. and unfortunately those cease to exist. >> do you think we will see manned subs down there, something like the alvin manned research submarine. >> i think eventually we will when we are in the retrieval phrase. right now we are talking abo

. >> the dragon of the sea. these are things that people find what is this?ld it up, it's 17 feet long, is this a monster? >> they can get to be 36 feet long and i say these because there were two of them. >> wow. >> this was in the sea of cortez east of san francisco. >> i'm going there. >> my gosh look at the size of this thing. >>> the amazing spider-man ii comes out may 2nd, a lot of people excited for that and this video one of the top trending videos on reddit this week, spidey flinging himself around new york city and doing the spider-man thing that he does. we've seen him do so many times before but right here he notices something peculiar. >> it's an imposter. >> you might think. they look at each other and spider-man doesn't hang upside down so does the baby spider-man. >> spidey was quite the guy with the ladies so maybe this is spider baby coming in to say what's up, dad? >> is in a mirror because the baby spider-man is doing the same thing address spider-man. >> what is it? >> down on the street and flings some web and shooting web back and forth

sea. plus, colorado's found a way to make it more convenient to by marijuana. details ahead. >> n.a.s.a. has given the green launch for an unmanned cargo ship. the space ex-dragons rocket was loaded with 5,000 pounds of supplies. the computer failure will affect an ability to dock. rocket scientists will figure out a work around. the company will launch. >> we will see a dragons climbing up the ash our, the protocol, approach, to the station, about 30 hours, with a grappling at 38 hours after lift off. >> space x has a $1.6 billion contract with n.a.s.a. for a series of supply missions. n.a.s.a. says a suppose walk may be needed to fix the bad computer. like most of the world the oceans are going digital. after more than 200 years the federal government will stop printing nautical maps. tonya moseley reports on the end of an era. she joins us from a boat it looks like ahoy there tonya, this sounds like a big change. >> yes, ahoy there. i am sitting here on a republica of a boat that george vancouver used back in the 1790s to chart some of the smaller waterways. that information would be put on lithograph uk charts like this one. it could take a year to print. th