But for Murtha, a hawkish conservative Democrat who is a decorated Vietnam combat veteran and was a colonel (?) in the military, who voted in support of the Iraq war, is a big backer of the military over his three-plus decades in Congress and is generally viewed to be speaking what they cannot say, comes out and says he was wrong to vote for the war and we need to get out in the next six months? That's news. That's man bites dog, and it's going to get a lot of coverage.
As for Lieberman, when he did speak up when the rest of his party wouldn't -- and when they were in power in Washington, which I think is an important point -- in saying on the Senate floor during the whole Lewinsky affair that Clinton needed to come clean, admit the truth and apologize, I remember him getting a heck of a lot of attention and praise from the "mainstream media."