exposing of the sources and methods of how we found out it's isis, it's clearly going to up set some of our intelligence efforts. >> the bob, the fact the response is fairly muted a couple videoing claims responsibility. does that surprise you? would you be expecting to hear more from them publicly if they were the ones that brought down the plane? >> anderson, i would. i would think they would consider this a great victory bringing down a russian airplane. they are at war with russia and been bombed. what i would have expected at this point is the islamic state to come out and say look, we took this plane down and this is how we did it, offered some sort of proof they truly were involved. in the past they have provided videos and the rest of it because they do want to take credit like this so it makes me wonder if the islamic state was behind it. a lot of this chatter that juliette was talking about is vague and cryptic. i've never seen chatter that is