based on what you know about the way planes break up in a situation like this, clive, what are your thoughts on the size of the objects the satellites are actually picking up? >> well, i would be looking for most importantly i think i would be looking for two things, i would be looking for parts of the tail system, the vertical stabilizer, and the horizontal stabilizer, buzz they do break up. and normally they float. and i would hope to see also because we keep talking about this 70-foot-plus piece of debris, that's come up several times. that would match the one-half of the wing, left or right wing. and that would be a very significant find. >> as you know, crews are racing against the clock only a few days left if those pingers are working on the so-called black boxes, the flight data recorder, the cockpit voice recorder, you compared the reliance on these black boxes to using a vcr in the age of netflix and streaming video. so what kind of video should