acting director of the cia and richard clark, former member of the national security council and i am a member of the acau national advisoryng to work. we are so far apart. and what was amaze big this experience is that we worked hard together. talked to each other, developed a respect for one another and were you man news in every one of our 46 recommendations and i never thoughted be possible. >> famously barack obama who you have known for a long time when he was just a new candidate said it was a false choice between the liberties we cherish and the security we provide. since then, since he's now at the dashboard he as some different views about it. did you find yourself calling in to question some of your own cherished beliefs in these questions? >> i wouldn't put it that way. i learned a great deal than i didn't know before. reflect that go through my values and understandings i changed my views on some things, as all of us did. because it was a great learning experience. and both in terms of learning information, hearing from, you know, european union, hearing from the head of the nsa, cia. fbi. senate and house int