American legal discourse on torture takes for granted some, usually all, of the following propositions, that make discussion of torture more difficult than it should be. Torture is assumed to present unusually difficult problems of definition, full of vague concepts, fine lines, gray areas, murky moral dilemmas, dirty hands. This vagueness is thought to be even more of a problem for the attendant concept of cruel, inhuman, and degrading treatment. The legal sources of either prohibition are assumed to be dubious under American law. Prohibiting torture is, perhaps for these reasons, thought to require moral justification not necessarily required of other legal prohibitions discussed in legal scholarship. This moral justification, in turn...