...Second, there is the captured terrorist. A terrorist is by profession, indeed by definition, an unlawful combatant: He lives outside the laws of war because he does not wear a uniform, he hides among civilians, and he deliberately targets innocents. He is entitled to no protections whatsoever. People seem to think that the postwar Geneva Conventions were written only to protect detainees. In fact, their deeper purpose was to provide a deterrent to the kind of barbaric treatment of civilians that had become so horribly apparent during the first half of the 20th century, and in particular, during the Second World War. The idea was to deter the abuse of civilians by promising combatants who treated noncombatants well that they themselves would be treated according to a code of dignity if captured--and, crucially, that they would be denied the protections of that code if they broke the laws of war and abused civilians themselves.

Breaking the laws of war and abusing civilians are what, to understate the matter vastly, terrorists do for a living. They are entitled, therefore, to nothing. Anyone who blows up a car bomb in a market deserves to spend the rest of his life roasting on a spit over an open fire. But we don't do that because we do not descend to the level of our enemy. We don't do that because, unlike him, we are civilized. Even though terrorists are entitled to no humane treatment, we give it to them because it is in our nature as a moral and humane people. And when on rare occasions we fail to do that, as has occurred in several of the fronts of the war on terror, we are duly disgraced...