lot of time to search when really the current and the waves would have moved things far away. they've gotten the pings, they've gotten the four pings. at this point they're going to go under water and look. if they find it they don't need the wreckage that floated away. they need to find what's under the surface. they'll have to take the next step in they don't find the wresage there. if this is the place and they have the black boxes, searching for the wreckage on top of the water won't help anything. >> do you think that maybe the organized effort would end on the surface and the air search and some private money would say we're going to keep looking to get these families some answers? >> it could and it has in other accidents in the past. while governments don't usually charge or go after the airline to pay for the search and rescue or search and recovery, that's not unprecedented. there have been accidents in the past. there was one in indonesia where