He may be saying this to try to beat some sense into the lefties, to try and get across the message that the U.S. are, believe it or not, the good guys, and that we play by the rules. It'll fall on deaf ears, for the most part, but maybe some people will wake up. It wouldn't surprise me if many lefties don't even know what the hell the Geneva Convention is, much less that Iraq is grossly disregarding it.
Now that it's been brought up, I assume Iraq is NOT a signing party of the Geneva Accords. Does that mean that they are not bound by it? In other words, is their violation of the accords simply bad P.R., or is it 'prosecutable'?