[T]he proliferation of … denatured metaphors is really a tribute to the civilizing process, as we sublimate our aggression into more pacific channels… . But even if these violent reveries are almost never acted out, they coarsen the debate and dehumanize the other side. In fact, the scenarios behind those fantasies go a long way toward creating the so-called climate of hate. If you’re going to imagine yourself riding to the rescue of the Republic, you’re going to need to see your opponents as nefarious alien life forms. You put on a cowboy suit, and suddenly everybody else is an Indian.