Howard Dean — for all intents and purposes — exited the Democratic primaries with his famous scream. But it would have been the voters who'd screamed had they known about a vote buried in Dean's lefty Vermont past — in favor of incest. Yes, in favor of incest. The Kerry campaign is even now considering what prominence to give Dean at next week's convention. Dean, of course, has an intense following among the Democratic base, but he runs counter to the careful image of political and social moderation Kerry is attempting to project with all his might. How counter? Consider...