The advent of the blogosphere has revealed that in the MSM "fake but accurate" stories are commonplace. Almost fifty years ago I saw the President of the student body interviewed for local TV. In response to a question about a very liberal proposal he said, "It sounds like a good idea, but here are the problems with it, ..." On TV he was shown saying, "It sounds like a good idea." So I think the MSM has done this sort of editorializing for years, but it wasn't widely recognized. I also note that the bias of the MSM is definitely towards the left. The recent criticism of AP for using ficticious sources for stories from Iraq that are damaging to the US are a case in point.