Ocean trying to do the job. As you know, the mission was aborted after nearly six hours, today, the round is expected to go for hours, there are new developments, the developments with the oily substance, and a tracking element that may change everything about what happened to flight 370. The question is, why six years later will it be rolled out . First, Michael Holmes from perth. What is the latest, michael . Reporter anderson, good morning from perth. Yeah, the bluefin21 doing its work down under, it is almost half way to the ocean floor segment, two hours to get up, 16 hours on the bottom. Then they download the data. Also planes and ships out there again today. We had been told that that phase of things looking for surface wreckage would be scaled down this week. But no sign of that yet. They are still in the air and on the ocean looking for any wreckage. Of course, none found so far and were now into our sixth week, anderson. As you say none found so far, the wreckage. Has the data been processed from the bluefins first dive, as we know it was called off because of the depths. Do you know if they have found anything of note . Reporter yeah, good question, in the last hour we got word of that. It covered about four square miles during the aborted mission. On the normal vision it would cover half or 40 square kilometers. They analyzed that data. And sad to say they found almost nothing of any use, nothing relevant. But of course it was just the first mission, and an aborted one at that. And the fuel recovered from the search, do they know if it is related to the plane . Have they been able to determine it yet . Not yet, we have to remember the search area is about over 2,000 kilometers off the coast of western australia. They did pick up the two liters of oil that they found floating out there near where the ocean shield is. They have bottled it. Basically what they have to do is get a ship out there and then helicopter it to the ship and the ship can get it closer in. And then helicopter it to get it to perth. They say it will take two or three days so well know what it is. They have sent samples of the engine oil that would have been in mh370s engine so that they can do a comparative analysis on that. Theyre also going to be check to see whether it could be hydraulic fluid. Yes, just getting it back here will be a journey. All right, we appreciate it. And bringing back david souci, cnn analyst, david gallo, coleader of the search for air France Flight 447. Also former director of transportation. Mary schiavo. David, the fact they didnt get any data from this bluefin, i dont think you would be surprised. It is frustrating, unfortunate to think something went wrong but it is not unusual. The fact the mission was aborted because of the depth, they found themselves in deeper water than they anticipated, the surface was deeper and they had to call it back and sort of recalibrate things. Does that indicate to you a lack of real understanding of what the depth is here . Well, every day they go out there they will learn something new about the terrain and make adjustments, both to the hardware of the vehicle, the software, and the plans. It may happen once or twice more. We had it aborted once or twice with the search for air france 447. Why did it happen we had the remis 6,000s, the approach was different, they were going with as captain matthews talked about the tactical approach, which the idea they had the solid pinger location, they were going to throw the dart at the bulls eye. Our idea was covering it with multiple vehicles so it was a totally different kind of mapping program. David souci, do you think that indicates they have perhaps more information that they let on . That is the way im seeing it. Apparently they have more confidence on where it is, or as like david said they would throw it more at the screening. They do, david, have another underwater vehicle and go deeper . They have plenty of tools that they can bring to bear on this. If they need to change strategy, maybe the tactical means is not working and they have to go to more strategic they will bring Something Else in on the mission. And mary, we heard from the air Marshal Angus houston, the air search is nearing its end. That is not certainly something the families want to hear. Well, that is true, but at some points the currents will work on the debris that would have been there almost five or six weeks. And there is just not a real chance they will find much at this point. This far out it would be so far dissipated. And they cant justify it. Particularly as the other guests have said they really believe they have zeroed on the point where the plane is. And there is, of course, all the many stories floating around about australias incredible radar, almost mythiccal quality, they do have strategies, throwing the dart where they think the bulls eye is. It is kind of amazing that the plane can theoretically hit the water i guess there was the ship . The sidney. And only a raft went down. And later, near christmas island, the site, one life raft showed up. It is incredible. Absolutely incredible. We heard the malaysian transportation minister, david souci, that it matters less who takes control of the black boxes as long as the black boxes are found. To you does that matter who takes control . That was a little disturbing to hear that. It doesnt matter who takes control. It matters a great deal. He is in charge of this investigation, by the rules nothing goes there until he says it goes there. So he is responsible of making that decision. I would think of anybody he would care where it goes. Mary, we also heard the malaysians saying theyre setting up a committee to look into how the plane could vanish without barely a trace, is that what should happen at this more . Well, that, plus more. When we do an investigation, the ntsb, they set up similar committees, except far more. So it is good theyre setting up the committees. But the true Investigative Committee that should be working overall to solve this accident, the causes, the probable causes, any recommendations, the full panoply of what comes out after a crash really should contain far more working groups and committees. But yes, if theyre going to be very objective and look at how this happened. Look at their own response and how it happened, of course it is good to do that. A lot to cover tonight, including as we mentioned, underwater territory that weve never seen before. Also, Vladimir Putins words, on paving the way for civil war. Let us know what you think. Coming up next, david gallo shows us the amazing look of what the ocean floor looks like. Two underwater sonar devices and the remarkable pictures the machines can take. And later this. 797, over on the may day, going down. Were going to show you what begins as a disaster becomes an opportunity. Air crashes over the years that have made air crashes today so rare. Lessons that have been learned and what is being learned this time when we continue. Its built to be as fast o as it is strongadvil. And fights pain at the site of inflammation. And made for people like paul, who believe nothing should stop you from achieving your goals. Not doubt. Not fear. And definitely not back and shoulder pain. Advil has the strength and speed to help you move past pain and make today yours. Advil. Make today yours. But i didnt always watch out for myself. With so much noise about health care, i tuned it all out. 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For what reality teaches you. Firsthand. E. In the face of danger, and under the most demanding circumstances. Experience builds character. Experience builds confidence. And experience. Has built this. The 2014 glk. The engineering, and the experience, of mercedesbenz. See your authorized dealer for exceptional offers through mercedesbenz financial services. And well be here at lifelock doing our thing you do your shop from anywhere thing, offering protection that simple credit score monitoring cant. Get lifelock protection and live life free. Alas. With the bluefin back under water, search teams will get not only a better chance of finding pieces of flight 370, they will also get a better look at the lay of the land on the ocean floor, the nooks, the crannies, and the ocean floor. Back with me is david gallo, we have two images, clearly two different ships. What are we looking at . Different depths . The more i look at it, the more it looks like different depths. This looks like a mass up here this would be amassed up here . Right there. So it is the kind of image the bluefin can take of objects on the sea floor. It is just remarkable. Can you get it in one pass . You can get it in one pass, it depends on how close the vehicle is in the water, it can be one pass or multiple passes. I want to take another look at a side scanning sonar yeah, this is fantastic. This is the path of the vehicle. So the robot is heading in this direction sending out pings to either side like this. And the sound comes off and bounces off objects. When you see Something Like this, bright, it means that is a hard return. There is a shadow sounded. You can see the ship over the top. It leaves a gap directly underneath the vehicle, why they call it a side scan or a sidelooking sonar. And when you get an image like that, it is actually two images two beams, the portside and star board side. And you want to look not from a bluefin, but a search you were involved in. This is actually the titanic . Yes, the path of our vehicles are mowing back and forth. You can see lines in the image itself. Exactly, right, and so many, many images. That is over a mile across. This is the bow of the titanic sitting right here. It broke in half, this is the stern of the titanic, it broke away, so this is six football fields. All the debris field, all of these things you are looking for, from pieces of pottery and lights all of these things, little speckles. The stern had the huge debris field associated with it. There is another titanic image here that i want to look at. Is this zooming in on the bow . Yes, just zooming in on the bow. This shows you how powerful the sonar can be, jack was king of the world, the mask, some of the openings here you can get this just from one pass . Just one pass. And sometimes we go over it two or three times to make sure we dont miss anything. What kind of vehicle took this . This is the remis 6,000, very similar to the type of vehicle that the bluefin21 is. So it goes 6,000 it goes deeper, so it is incredible work. This is another image of the titanic, extraordinary. This is an optical image, many, you can see the sides of the image so this is multiple photographs. This is done with another vehicle operated by Phoenix International that may or may not come into play later on in the Malaysian Air search. So this is the optical view of that same bow. So that is an underwater vehicle that just moves along the side of the ship, click, click, snap, snap, anyone with a digital camera that has done that panoramic view knows how hard it is to do that. It is just incredible, the technology, for all the bluefin21 can learn it is only there to take sonar pictures. There will be other searches, done with other vehicles. Gary tuchman found out more on the pieces of the shuttle challenger. Here is what he saw. Reporter at first glance, it looks like a spacecraft more than anything else. But this is a research sub that combs the seas doing everything from medical to ship recovery. We have multiple light systems on the ship. Reporter jimmy nelson used to spend about 170 days a year on this sub. The johnson ceiling submersible, as it is known. It is now retired, the florida oce oceangraphic institution. But other manned sea vehicles might be next the line to aid in the Malaysian Airline search. If this can get to the wreckage is, how effective do you think it can be in the recovery effort . Very effective. Reporter this is the view of the submersible in the atlantic ocean. It can go 3,000 feet deb deep, like all vehicles it can only go so far. This recovered some of the wreckage from the illfated shuttle. We have the capability of moving around. Reporter a tool called the manipulator does the important work of grabbing, scooping and sucking up samples that are recovered. This sub is about 24 feet long and 11 feet tall. It weighs about 28,000 pounds. It has enough oxygen, and emergency provisions on board for the people to survive under water for up to five days. Reporter there is also a back cabin on the submersible. A crew keeps an eye on the submersible. And another sub shares the area, about 5 x 3 feet. So to give the viewers how tight it is. This is how youre sitting. This is how im sitting and you could be here for hours. Reporter but during those hours this is what is taking place. So we fire up the sonar system and it does a sweep and paints a picture as it spins around 360 degrees. If there are solid targets it will paint a small picture. Reporter the use of hightech unmanned underwater vehicles is increasing. But jimmy nelson says when looking for wreckage, the manned submersibles offer an important dimension. So you can see that looking out of the corner of your eye, it can spot things that other manned craft can spot . Correct. Reporter others may soon be sent to action in the indian ocean under water in an effort to solve a mystery. Gary tuchman, fort pierce, florida. For or information you can go to cnn. Com. Coming up tonight, could a new system for tracking systems with gps prevent this type of thing from happening again . The question is, if it can help why isnt it being implemented right now. And elsewhere, making sure the saddest moments in aviation history never repeats itself. Also breaking news, a new alqaeda video surfacing, a top Leader Meeting with more than 100 followers. Well tell you where it happened, who the people involved were and why it is so important. The question is does the u. S. Even know about this meeting . Try alka seltzer fruit chews. They work fast on heart burn and taste awesome. These are good. Told ya im feeling better already. Alkaseltzer fruit chews. Enjoy the relief . Work with equity experts. Who work with regional experts. Thats when expertise happens. Mfs. Because there is no expertise without collaboration. Hooking up the country whelping business run build were investing big to keep our country in the lead. Load we keep moving to deliver what you need. And that means growth, lots of cargo going all around the globe. Cars and parts, fuel and steel, peas and rice, hey thats nice Norfolk Southern whats your function . Helping this big country move ahead as one Norfolk Southern hows that function . Without standard leather. You are feeling exhilarated with frontwheel drive. You are feeling powerful with a 4cylinder engine. [ male announcer ] open your eyes. To the 6cylinder, 8speed lexus gs. With more standard horsepower than any of its german competitors. This is a wakeup call. The crash of flight 370 and the mystery surrounding it understandably scares everybody. The fact is, though, your drive to the airport is many, many more times dangerous than the flight. And there is a reason for that. The business of making planes, and carrying passengers, and the industry is still a very much tightknit community with a long tradition of learning from past mistakes or like this one, anticipating them. They have the use of Gps Technology and satellites instead of radar. Requiring that all Aircraft Operations in the u. S. Be ready for it with the right transmitting equipment by the year 2020. And it is precisely the type of situation that could have helped follow and find flight 370. And in so many situations, the result of a lot of hard lessons learned. The flight from miami to atlanta, the day before mothers day, 1996. The pilots hear a loud boom six minutes into the flight. Returning to miami. What kind of problem are you having . Smoke in the cabin. The pilots head to the nearest airport. Meanwhile, passengers are yelling about a fire. The aircraft rolls on its side, then crashes nose first into the florida everglades, killing all the people on board. The ntsb believes it happened in the cargo department. If we would have had this type of element, it would have been afforded more time to get the plane back on the ground. The faa took those words to heart, and as a result changed standards for cargo, requiring smoke detectors in the cargo holds. And fire distinguishers. And in canada, the plane made an Emergency Landing on the way from dallas to toronto. There was a fire in the bathroom. We have a fire in the bathroom and filling up with smoke right now. Reporter incredibly, the plane landed safely. But half the passengers and crew died because they could not exit the plane fast enough. That gave rise to new fire safety standards, including bathroom smoke detectors and automatic fire extinguishers. Today, planes are much more fire resista resistant, with chairs and carpets more fire resistant, and the flight exits pointed to before takeoff, those were added to save your life, too. Smoke in the cockpit was the problem on swiss air flight 111 after it took off in 1998. We have to land immediately. It crashed just off the coast of nova scotia, they traced the flight back to the entertainment system. Following the crash, the faa ordered all mylar replaced with fire resistant materials. We are calling for better standards in the industry. Reporter in 1995. We saw a huge improvement in technology to protect us from high winds after delta flight 191 crashed at dallas ft. Worth international airport. It was landing during a thunderstorm, 137 people died. After Much Research by nasa and the faa, forwardlooking window sheer radar detectors became the standard. The flight out of jfk airport in 1996 was another hard lesson. It blew up in the air, and then we saw two fire bal