It's not easy to make the infamous Willie Horton ad from the 1988 presidential campaign seem benign. But suggesting that Barack Obama is the Antichrist might just do it. That's just what some outraged Christian supporters of the Democratic nominee are claiming John McCain's campaign did in an ad called "The One" that was recently released online. The Republican nominee's advisers brush off the charges, arguing that the spot was meant to be a "creative" and "humorous" way of poking fun at Obama's popularity by painting him as a self-appointed messiah. But even this innocuous interpretation of the ad —...