back to a point you made earlier. it's also possible that even the impact of the plane could have caused this ping? >> yeah. it's hard to say for sure, of course. but there's any number of scenarios you could come up with that would sort of reactivate that box in some way to have it try to communicate with that satellite. whatever it was it was probably some sort of power surge. what would cause that? i think the first suspect would be the flame out of the engine. that's not going to be the exact spot necessarily where it went down. the other engine would be going for a little while but not much longer. but certainly you talk about trying to find the haystack. that's probably where the haystack is. >> we're going to be turning to our panel members throughout the hour tonight and live at 11:00 to midnight tonight. let us know what you think. coming up next with heavy indian ocean waves like these subsiding, this is what it has looked like in past years. give you a sense how rough it can be out there. search resuming this hour.