Deep Throat identified

This is all over MSM sources as well as the blogosphere, but worth blogging nevertheless: top FBI guy Mark Felt was Woodward and Bernstein's"Deep Throat" source during their Watergate investigation. It's very admirable that they kept their word to protect his anonymity all these years. He was played by Hal Holbrook in the 1976 film of their book"All the President's Men," which, BTW, ought to be required viewing for all lovers of the First Amendment.