before we talk about the psychology of fear, kninick, yo actually crossed paths with james foley. sometimes, it gets lost in who was he, what kind of person he was. is there anything you could tell us about him? >> i had limited experience of working with jim. we worked together on a piece about living in a rebel in fact to who was fighting alongside syrian rebels in aleppo. a good two years ago. extraordinary, professional, courteous, but also working inside aleppo, terrible communication issues. we exchanged skype messages, that's all we could do. courageous in the fact he was there. the things we needed to work out and just generally seemed to be great at his profess. >> yeah, yeah, obviously in those situations, everyone is so focused on their work, but you have these interactions that become very meaningful. let me ask you, the psychology of fear, from my van vantage point has made a use of fear. we saw tweets sent out for the world to see as a warning to americans. you've covered a lot of conflicts. i've covered a lot of conflicts. is this different what you're seeinging the