In an amazing, must-read piece in the Washington Post, Bob Woodward explains how he met Mark Felt, who later became Deep Throat.
However, USA Today re-reads All the President's Men and notes that "some things in the book, as well as other statements by Woodward over the years, led researchers to conclude that Deep Throat had been someone else or was a composite of several characters."
On the Huffington Post, Nora Ephron, Carl Bernstein's ex-wife, writes about how she figured out the mystery without Bernstein telling her the secret.