oil planes or perhaps hydraulic fluid. they tested it. it is not related to the airliner. and probably a little bit of disappointment that it was not related but they really didn't hold out a whole lot of hope that it would be conclusive, bill. >> and how about the status of the air search? >> it is interesting, angus houston, the man heading up this search. it was interesting he saw the search winding down in the next few days. well, it continues, there is another pace. with planes up there, and in fact we have a crew on one of them. and we'll get more on the report from miguel marquez about that flight. and crews had searched before where you remember a chinese vessel reported a ping which turned out to be nothing. but they're going down there and re-visiting that particular area because of the sea patterns and the way the currents have moved, they have shut that down.