Found this and thought it was interesting. From the link, page 66 has a senate committee testimony with the cia about MKULTRA. Keywords: North Korea, brainwashing, isolation

Senator SCHWEIKER. Mr. Gittinger, a moment ago you mentioned brainwashing techniques, as one area that you had, I guess, done some work in. How would you characterize the state of the art of brain- washing today? Who has the most expertise in this field, and who is or is not doing it in terms of other governments? During the Korean war there was a lot of serious discussion about brainwashing techniques being used by the North Koreans, and I am interested in finding out what the state of the art is today, as you see it.

Mr. GITTINGER. Well, of course, there has been a great deal of work on this, and there is still a great deal of controversy. I can tell you that as far as I knew, by 1961, 1962, it was at least proven to my satis- faction that brainwashing, so called, is some kind of an esoteric device where drugs or mind-altering kinds of conditions and so forth were used, did not exist even though "The Manchurian Candidate" as a movie really set us back a long time, because it made something im- possible look plausible. Do you follow what I mean? But by 1962 and 1963, the general idea that we were able to come up with is that brain- washing was largely a process of isolating a human being, keeping him out of contact, putting him under long stress in relationship to interviewing and interrogation, and that they could produce any change that way without having to resort to any kind of esoteric means.

Senator SCHWEIKER. Are there ways that we can ascertain this from a distance when we see a captive prisoner either go on television, in a photograph, or at a press conference? In other words, are there cer- tain signs that you have learned to recognize from your technical background, to tell when brainwashing has occurred? Or is that very difficult to do?

Mr. GITTINGER. It is difficult to do. I think it is posible now in terms of looking at a picture of somebody who has been in enemy hands for a long period of time. We can get some pretty good ideas of what kind of circumstances he has been under, if that is what you mean.

Was John McCain brainwashed while a POW in Vietnam????????