As we write, the great entertainment afforded by Dan Rather, the celebrity news reader, is still unfolding. How solemn Mr. Rather looked a few weeks ago as he unveiled, on 60 Minutes 11, those incriminating memoranda. Mr. Rather has basically two modes when performing: Deeply Sincere—the mode that he adopted, for example, when interviewing Saddam Hussein shortly before the dictator’s mandatory retirement last year—and Righteously Indignant. He adopted the latter as he explained to his television audience that, back in the early 1970s, President Bush got special treatment when he was in the National Guard: See, it says so right...