i want to bring in brian stealther. he's joining us from new york. thanks for being on the program. this is a modern terrorist group for lack of a better description. they are all over social media trying to intimidate people, trying to recruit people, trying to appeal to subset of millennials. these pose challenges. i'm curious, there are policies by companies like twitter and youtube when it comes to these things including the disturbing material? >> there are policies that are evolving as we speak. a decade ago it was al qaeda creating online magazines which was for them innovative at the time. now it's a group like isis using twitter or facebook or other tools we also use every day. in order to spread their messages and that is innovative for them at this time. twitter and youtube are having to figure out how to handle this. these websites almost always err on the side of free expression. i had a public relations person reach out to me concerned about a family that he is helping, he represents a family of one of these people who have been detained either in iraq or syria, one of