There's NO WAY he could have looked at these memos and not had his suspicion aroused. He is just flat-out lying and has been from the beginning.
That's exactly my take on it. There's no way that CBS News was duped.
Scarborough Country is also giving a good treatment to the story, They have Heavy hitters from the MSM basically conceding that Dan is blowing it and that the documents are basically fake. Howard Fineman said that what's at stake here is the credibility of the MSM, that the danger is that CBS looks like Democrat Partisan.