make a positive id. and agents say be close to the identification of those passengers, reports are being run to ground tonight but in washington there were no details public. as two u.s. destroyers and surveillance aircraft join the search for the wreckage, fox news learned this was tied against the data base, a broad data base cross-checked, which includes terrorists but so far no known attacks. they have found no evidence of a specific plot but the review is ongoing. >> my understanding is as of now there are no terrorists indicators. one of them would be shadow, which is conversation among terrorists who are believed to be terrorists which would indicate there is an attack planned or had been carried out. >> the former ntsb investigator s say there are five options to pursue, including pilot suicide,