You forget, Libby also assumed they were a bunch of doofuses and look who's been indicted for hiding behind a reporters shield.
Mark Levin was quoting a newsmax story tonight where they had a transcript of the Andrea Mitchell CNBC interview about how widespread the prior knowledge was about Plame. I am not sure if there is a thread on it, but from what Mark quoted - they all knew, all of them, including Russert.