A few days ago, MSNBC correspondent David Shuster said he left Fox News because the network lacked a track record of honoring journalistic integrity and wasn't interested in holding the Bush administration accountable. Then a Fox source called him "disgruntled and bitter," and quoted from his confidential HR file. Shuster felt compelled to respond.

"If I want to do a hit job on Fox News, everybody at that organization knows that I could tear them apart," he tells TVNewser. "Everybody there also knows that it would be a severe mistake to try to start a battle with me. Roger Ailes, John Moody, and the rest of management knows that I would do far more damage to them than they could ever do to me."

"However, I've never asked for any fight with them," he continued. "I still have great friends at Fox News on the air and off, and I think they will see the interview with my hometown paper as what it is -- as a candid explanation to friends about the course of my career and why I've made the decisions I have."