How about Colin Powell?
He is the most likely candiate. He is a "former" official, he was a "high" official%5{sonal terms with Woodward, and Woodward said this was more in the line of gossip than any attempt to "punish" Mr. Wilson (Oh, how I wish I could be "punished" by being smitten with a multi-million dollar book deal!!).
Question for Mr. Wilson: "When your undercover wife is off on clandestine assignments, do you change the diapers on your twins by yourself?"