I should perhaps clarify that while I am a bit of a liberal, I don't entirely disapprove of taking a fairly robust line with prisoners who are suspected of being terrorists (for example) and I don't have a particular problem with some of the humiliations shown in the photos (though the fact that they were photographed and publicised is clearly hugely damaging). In my simplistic mind, there's a huge difference between hooding people, naked, standing them in stress positions, humiliating them and the like, and actually administering beatings, breaking jaws, knocking teeth out, raping them with broomsticks and killing them. I suspect that all are against the spirit of the Geneva Convention, but in my mind there is a difference between humiliation and brutality.
Moreover, there does seem to be a danger that some of the things done to humiliate these prisoners does far more damage to those administering them.....