it impress him? he said this is, as he put it, the best of the best. the world's first class divers and cave specialists here to try to get these boys out. you think that they were found on that beach or beach head in a way deep inside that cavern around 16 days ago. that in and of itself was surprising to many that they lived to that point. well, they've lived on, they've survived and they've had a global effort, it seems, to get them out. the next few hours, the next day, in fact, into tomorrow will be crucial whether they can get these boys out safely and to their family. george. >> the best of the best dealing with very different conditions and children, david, some of whom cannot swim, some of whom may be weak from two weeks now in this cave system, it is a lot to sort out, of course. david mckenzie, we will all be in touch with you as you learn more from your sources there on