Why isn't the MSM covering Limbaugh's attack on the troops?

UPDATE: Greg Sargent has an excellent post up about this issue as well:

President Bush was recently asked at a press conference to comment on the MoveOn ad attacking Mighty Scholar-Warrior Petraeus. Many concluded it was a planted question, and naturally, Bush responded by slamming the group and saying that he was disappointed in Dems for their reluctance repudiate MoveOn's mean and nasty attack on the General.

So here's the question: Will anyone in the White House press corps ask whether Bush -- who's appeared on Rush's show, as has Veep Cheney -- will repudiate Rush for remarking that soldiers who don't agree with the President's war policies are "phony soldiers"?

When MoveOn legitimately called into question General Petraeus' honesty (he's lied before), the mainstream media dutifully covered the Republicans' crocodile tears. But when Rush Limbaugh - Dick Cheney's favorite interviewer - attacks the integrity of American troops dying in Iraq for our country, the most the media can muster is coverage in their "blogs." Whether it's CBS blog, the Baltimore Sun blog, or the Chicago Tribune blog, there isn't a lot of coverage of this issue in the real CBS News, the real Baltimore Sun, or the real Chicago Tribune, or anywhere else. Why the double standard? Senior Democrats have called out Limbaugh for his venom, which is usually what's needed to make a story "real" in the eyes of the MSM. So why the double standard - when Dems are accused of dissing the troops, it's a front page story for weeks. When Republicans actually diss the troops, it's no big deal.