in france germany and spain are looking through all sources of intelligence and cross-referencing the passenger manifest to see if there is anyone of interest that the u.s. is aware of who may have been on that flight flight 9525 according to two law enforcement officials i have been speaking with. what we have learned is so far, preliminarily in the process of running these names through data bases, it hasn't turned up anything that stands out or anything linking these passengers to criminal activity. we know that this process is ongoing and officials say the bottom line there's just not clarity right now as to what caused this crash. but the fbi wants to make sure that it's nothing other than just a simple accident especially considering the fact that there were three americans on board. the u.s. has a keen interest finding out exactly what happened here. the fbi we should note has offered full assistance and is still standing by in the event. the french authorities who are leading the investigation formally ask for their help. that has not happened yet, i'm told.