While I find those images on the Internet of a blunt little mustache digitally-scribbled onto President Bush's upper lip feeble and unhelpful, still, there are parts of Bush's character and behavior that strikingly resemble at least one major biographer's interpretation of Hitler. Ian Kershaw's two-volume life of Hitler puts great emphasis on his being a driving high-stakes gambler - with innate, animal-cunning about human psychology, few gifts of statesmanship or strategy, and little systematic learning - attributing most of his success and all of his failure to his compulsive quality. When, for example, Bush waged his ferocious post-election pursuit of...