flight recorders. rene marsh joining us from washington with more on this. rein earthquake, time is running out for batteries on recorders. if they are found, who will actually analyze these recorders and get critical information from them? >> fred, at this point it's unclear which countries would get these recorders. malaysian authorities would essentially make that decision. that said, the nbt here in the united states is the most sophisticated labs. one-third of their work is for foreign government. it's quite possible ntsb could get those for analysis. how fast a readout? that could happen in 24 hours. that's for investigators in the u.s. >> we're talking about the indian ocean. incredibly deep. how might the depth impact investigators ability to retrieve usable data from the recorders if indeed they could locate them. >> it's extremely deep, in some