There certainly is a lot of speculation these days that “Deep Throat” is none other than Pat Buchanan. John Dean believes he’s narrowed the field of possible Deep Throats to four, and one of his suspects is Pat Buchanan. A University of Illinois journalism class is pointing at the old xenophobe as well, and Josh Marshall thinks that the way everyone is acting confirms the identity of Deep Throat. Of course, that begs the question: Why, Pat, why? I never would have thought of Pat Buchanan as the sort who would roll over on the President … did his conscience actually get to him? I’m dying to know.