to a terror cell somewhere. we need to know that in america because that may very well provide us with toinformation about people coming into this country and certainly information the european authorities must have. >> because the french prosecutors say that ayoub el khazzani while on that train just before the shooting incident, he was looking at videos inspiring people to jihadi acts. they found it on his phone while he was on the train. here is the question, though. watching hose individuthose vid does that automatically cause red flags among law enforcement authorities? >> it should. and also among those internet companies that are allowing these videos to be shown. this is something we've talked about here in the united states. internet companies have a responsibility to take a hard look at the kind of things that are being displayed on their networks. my answer is, yes, they should.