Well, for one thing, I believe what is asked for is sources. (as in, out of that list of books, what are the excerpts within them that are your exact sources?)
Another thing...Theodore Roosevelt was a very liberal Republican. He was not conservative at all.
I really don't think you can equate the holocaust with coercion to extract vital information in order to save thousands of innocent lives. I just don't see how it justifies those atrocities (or equates to them).
It goes unpunished? Hmmm...On Jan. 21, 1968, The Washington Post ran a front-page photo of a U.S. soldier supervising the waterboarding of a captured North Vietnamese soldier near Da Nang. The caption said the technique induced "a flooding sense of suffocation and drowning, meant to make him talk." This picture led to an Army investigation and, two months later, the court martial of the soldier. That can be found in the history of waterboarding...a link I posted previously.