discover. particularly with the black box and the time limit on the batteries for that. they really need to locate this debris as quickly as possible to have the best chance of finding anything out about this mystery. >> daniel, i know they've been back over these satellite images over and over again. i wonder if there's anymore degree of certainty what they may be? is there still a high possibility this is wreckage from the plane? >> i spoke to some satellite experts yesterday, and i think that people who have looked very closely at the images say they are credible. the larger piece of debris is much larger than a shipping container, and i think that offer some hope this may be part of the fuselage of the plane, but at this stage they are very indistinct. the highest pixel ratio of those satellite ratios is 50 sent meters, so at that resolution we can't really see things like