CNN Death Row Stories April 6, 2014 04:49:00
Discussion with the discussion about thermal layers and there may be geometry with the pinger, the black box being on the side of a hill or something and as the vessel moves, it could shift around enough there could be damp i don't knowing of the acoustic signals. this is promising in my opinion, don. >> can it be sea life or -- >> that's not my area of expertise, but from what i understand, that's all it's got to be at this point. what else would be out there to emit that kind of signal? >> i'm cautiously optimistic, don. i get the sense from this -- >> but can it be anything else is what i'm...