Appearing in a panel discussion of news anchors held at Harvard University earlier this week, Dan Rather defended himself against charges that he was liberally biased by quoting from a book by a left-wing media critic who also happened to be in the audience. After reciting some well-worn quotes from author Eric Alterman's book What Liberal Media?, Rather was almost scared out of his mind as someone from the audience called out "Give the source for that!" "Uh," Rather stammered, afraid that he'd be outed as a reader of a left-wing book on national television, "Pat Buchanan." "No," the audience...