i don't think isis thinks it can intimidate the west or united states government other governments. i think it's trying to serve as a magnate. you hear of a concourse taking place in northern africa. people switching from al-qaeda to isis. they're trying to draw more people from this conflict, and so far they're doing a pretty good job of it. >> will mccanst. is it possible to go after the islamic state just in iraq and not involve the u.s. in syria. >> no, that's not possible. it's pulling a lot of money from the oil there. it's not really being touched by the assad regime until you deal with it's base. you're not going to be able to solve the iraq problem. you can push them back and push them out of cities that they've been holding but eventually they'll come back. they're good and flexible force that is able to melt away into