gran today and twitter is the easiest way to get our videos and images and things like that. >> twitter has been quick to react to some of these messages that have popped up. they've closed accounts. we know anonymous, the hacking organization, has focused on twitter trying to take down some of the social media accounts from isis sympathizers. when you look at the arrests, new york, minnesota, california, and illinois. what do those states have in common from your report? >> social media is very important but at the end of e day relationships also matter. you look at a case like minnesota, you had a wave of individuals who went to syria and iraq and they called their friends and said come on over so there was a pre-existing relationship. we focus a lot on social media and that's an important aspect of this but at the end of the day it is your friends that you had back in the states and you try to get them to come back with you. >> the youngest arrested 15, the oldest 26. back to the demographics regarding twitter.