Today Peggy Noonan makes a glancing reference to something I've been meaning to write about for a while with respect to Rudy Giuliani: On 9/10/01 he was a bum, on 9/11 he was a man, and on 9/12 he was a hero. Life can change, shift, upend in an instant. Noonan is over dramatizing for effect, of course, but a while back I got an email from a self-described liberal in NYC saying much the same thing - namely, that in the mythical afterglow of Rudy's performance on 9/11 people have forgotten that (to paraphrase my emailer's formulation) "on September...