No turning back would be a good slogan for Dick Cheney. His memoirs are remarkable—and he shares this with Rumsfeld—for an almost perfect lack of second-guessing, regret, or even the mildest reconsideration. Decisions are now as they were then. If the Mission Accomplished moment in 2003 seemed at the time to be the height of American power and authority, then so it will remain—unquestioned, unaltered, uninflected by subsequent public events that show it quite clearly to have been nothing of the kind. “If I had to do it over again,” says Cheney, “I’d do it in a minute.”