On MSNBC's Countdown show on Friday, substitute host Brian Unger featured a softball interview with Democratic Congressman John Murtha during which Unger queued up Murtha to attack the Bush administration's Iraq policy and Republican critics. The Countdown host bolstered Murtha's credibility by referring to his war record and labelling him a "traditional hawk" while he discredited White House advisor Karl Rove by negatively labelling him as a "partisan attacker trying to squash discussion about Iraq," and proclaimed "the Swift-Boating of the 2006 election has begun." ...Murtha: "Well, it's just, it's a slogan. That's all. Here's a guy [Rove] sitting on...