>> they have been opportunistic. they sort of waited a couple days, which tells us something. if this was something planned by isis, they probably would respond immediately after the incident took place. now that there's news that one of the two terrorists -- suspected terrorists pledged allegiance to isis, now you have this media arm jump iing on tha news. that's consistent with isis behavior. al qaeda, which is sort of terrorism sort of 1.0, if you like, they were specific about how you could claim to be part of al qaeda. you have to go. to one of those places to train in a camp there. you had to conduct an operation that was approved from headquarters by someone higher up the chain of command and you got sent back to the country where you were going to do the attack. that's the only way to claim it. isis will do all of those