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Found debris with a satellite. i was concerned this may be wag the dog, or leading the search astray. so focusing everything on this search is important but not to disregard other possibilities, because everything is a possibility right now. and they have data that links the direction and the last half of handshake that should give it an impact area. ultimately, the impact area is the highest likelihood where the black box is going to be. >> and the point of impact, which is fascinating. switching gears, justin, talk about the families. you can't obviously forget the reason there's so much ene...

But i guess people -- it's hopeful, but i think people really want to see those large pieces. they want that sort of malaysia airlines insignia stamped on the base of something, metallic based. sthap fair? >> extremely fair. the big section, the 78-foot section they had a wheat weeek ago, hopeful. it might have been a big section of the plane, or a seconds held together as i explained. the smaller stuff, it gives you hope, you're looking for it to lead you to something bigger. >> exactly. i remember in some plane crashes they find a suitcase. terribly sad, gives people more hope than other thi...

You might have that honeycombed aluminum piece, carbon fiber, if the tail were carbon fiber, you might find that. wings still empty of fuel but had air in it those might float, and those big pieces there which you can trace back to the current, giving you your best possibility of coming back and finding the actual site it impacted. now, the most distressful thing today, there hasn't been a good integration of the data. these are not data points they've given us. simply sthed said they've tried to backtrach using 19th century geometry. my firm belief, all of the data should have been made publi...

Memory card, which keeps track of data like the plane's pitch, altitude and speed, is downloaded on to a computer system, where teams make sense of the data. to us it looks like zeros and ones. >> we get information from the manufacturer of the aircraft that has a data map, and that data map translates all the zeros and ones into actual parameters. >> reporter: for the cockpit voice recorder, a team of six to eight people helps transxrip the device's four channels picking up not just voices but everything from a door opening to a seat shifting. the work is difficult but key to understanding wh...

Find the answer, but so that all of this data is being streamlined into a central location? realtime? so we're getting a loop? les what do you think? >> i mean, all of these tools combine together to make an accident investigation more accurate. so, i mean, airplane signals, if that -- it becomes more available, more prevalent. this combined with the flight recorder will definitely help in an accident investigation. i mean, there's all of this stuff, it can be combined in realtime data, that the digital flight data recorder that's right here, and the cockpit voice recorder is all combined toge...