and that is what we call the bradberry memo.n that memo, there is a significantly changed role for the second group of health professionals putting mitchell and just an aside, the researchers. and it moves from them determining whether you crossed the line to determining the line . and to determine the line, that required research. and so we see in the bradberry memos clearly as we documented in the report, in 2010, is that they were having to look at the effect of the tactics to the whole detainee population over years and determine what the line was. because there's no clinical literature on torture. amy: last december, dr. james mitchell appeared on fox news to talk about his role in the waterboarding of abu zubaydah. he was interviewed by megyn kelly. >> abu zubaydah shut down. they asked me to come back to the campus, and it was clear to me when i was at the campus listened to what people were saying, there was so much pressure about trying to head off the second way that was coming that they were going to use some kind of