we do know that in some mosque $in americsin america and some u know we've had sting operations -- >> we know this from previous years. i have not heard or seen of any moving in the united states, in at least the last decade, where you have any imam calling for violence. they wouldn't dare. >> understood. but accepting the fact that it did happen, i don't know it's fair to say if we're not efficient at gathering this kind of information the way we should be, that we go to the point that we don't. isn't it useful that there is some process, isn't it worth looking into whether or not there are people in an organized fashion fashion, insighting people to violence? it doesn't have to be religious violence but if we can sense it is a trend shouldn't we be going after it? >> there are certain things baked into your question, we know about i.s.i.s. social media presence, we know about their propaganda and we had the same concerns about al qaeda five years ago. >> that's correct. >> it's not exactly a new story. we know there are forces outside is united states that are trying to insight musl