War is a terrible thing. No matter how hard we try, it is not possible to sanitize it and form it into something consumable by the general public.
I'm not clear on what you are getting at, but "go as you please" doesn't sound at all like a policy I would advocate.
American policy and treatment of priosners is(was) questionable. Had it not been the media and general public opionion, there would never have been any improvements. It was going towards what it does not stand for, losing its worldwide public support, and harming its own long term interests.
I am not against torture or wars, but the way America approached to solve its problems was bit dumb.