communication at all. this is the key concern, christine. you are talking about an ideology which is attractive to people who may have never met isis leadership. in the past you have a chain of command or you could investigator look for and surveillance. in this case you may not get that. you may have a lone wolf who sees something online and learns what he has to do on the internet and plots the attack. then afterwards isis says they are connected. one piece of information, christine, the head of the nsa embattled after the revelations of edward snowden and privacy. he will talk about the weeks ahead of trying to renew the powers that the nsa has for surveillance and you may want to view the comments on the threat of isis as he sees it within the light of the nsa and also trying to preserve the ability to do what they say to protect the national security. >> nick looking at all of the