>> ok? so the presumption is the u.s. military had somewhere on record usama bin laden's fingerprints. >> first, i don't know if this is the gear that was used. >> something like this. >> but they would have had to have the biometric data of who they're trying to match in the data base. >> if i ask you where this was five years ago, it wasn't out there. this is new. >> this is new technology. this has to be totally comprehensive. we have to give everyone's irises, correct? or thumbprints or fingerprints on file. >> the good news is the u.s. military has for the first four or five years been enrolling people with the fingerprints, thumb prints and irises in their data base. >> usama bin laden submitted to a retina scan oochlt that, i can't comment. i don't know. >> they use technology to fast