in this particular occasion, it would be harder to confuse what we have seen on satellite. if we go to the next picture, with potential confusion such as freighters, containers, refractions, everything else. >> last question, because we have these robots. we understand the depths of areas of the indian ocean go way down. very difficult to find. there are robots that we're sending down into the bottom of the ocean, very long process, and you're talking about a lot of square miles we're covering. tell us about how that process is going to move forward. >> this is key. we hear this analogy of finding the needle in the haystack. we have not found the haystack yet. and these robots will be key. once we find the haystack, which is this potential debris field. >> pinpoint the coordinates. >> get a good idea of where the debris is, all these robots can then go in and start looking for the debris on the surface. remember, if we go back to air