While you may have doubts that Guantanamo prisoners have been waterboarded, there is no doubt that prisoners have been tortured.
http://www.guardian.co.uk/world/2007...guantanamo.usa
I don't get the defense of this behavior. If it's legal to do against POWs how soon will we see it used against citizens? How soon will a citizen be declared a POW so that torture can be used?
One of the objectives of the law is to prohibit abuses of power. This is the sort of thing that should be specifically prohibited.