First Stanley, now Howie. (Why yes, I do have a great big man-crush on Glenn Greenwald - the question is, Why don't you? "I'm a woman" is an acceptable response, but only just this once.)
I suppose it's possible Howie was speaking facetiously or sarcastically, but it's hard to tell for sure. If it had been, say, the All-Seeing Eye Of Froomkin, I might be more inclined to give the benefit of the doubt.
Glenn also thinks that at least some of the media is awakening from the hypnotic trance that Bush and Rove put them in six years ago ("Focus on the cocktail weenie as I wave it back and forth... When I count to ten, you will fall into a deep, relaxing sleep..."). I hope he's right, but I'm not convinced. I think any underbus-throwing that they might be doing now is not so much an awakening of conscience so much as a desperate attempt to salvage the last shreds of their credibility.
Just as the first rule of parasites is to not kill your host (and risk starvation), the first rule of propaganda in this country is to not be too obvious (and risk irrelevance). Of course, the Republicans haven't been very mindful of the first rule, so it's probably unrealistic to expect them to heed the second.