. >> but ge jihaddists, they use twitter, youtube, how have they evolved, for recruitment and messaging? >> well, first of all i don't think it's as centralized as people think it is. what it is is a product of fact that you have young people who are already steeped in social media who are going there and using the only tools they know how and getting it out. that's one of the reasons the message is so authentic, youth talking to youth in the only language they know. don't mistake that for being some kind of orchestrated effort to use social media to are propagate this. it is the type of factor of people going there from europe and other places, who are already speaking this media. >> shihad, i look at social media here in the u.s. and people will like or retweet or respond but that doesn't necessarily mean that they're engaged. some of these people want to loosely associate themselves to it but there's no consequence of it. who d how do you determine who s real and who is not? >> it's tough. we see in addition come and go in social media. some people like things they see but it doesn't