There is, of course, no defense for Helen Thomas’s anti-Semitic remarks, and in isolation the consequences are unobjectionable. But why Pat Buchanan remains a constant presence on The Serious TeeVee News is also hard to defend or explain, just as I have yet to understand why the adultery of President, Attorney General, and Associate Justice John Edwards makes him History’s Greatest Monster while Rudy Guiliani and John McCain’s adultery didn’t stop them from become beloved media figures.