Yeah, not ideal, but he does link to Seymour Hersh’s investigation, which I read when it came out a while back, and found it to be comprehensive and pretty convincing. Unfortunately it looks like Hersh’s article is behind a paywall now, which really sucks.
At the time (last February) I was genuinely surprised that it wasn’t being covered in the mainstream media with any substance, and then I started seeing the more recent reports this article mentions, that just uncritically parrot the US government’s official line. Something is very clearly out of place, and it seems like the major players are just hoping the world forgets and moves on, which it basically has.
I thought blindly publishing the Bush administration’s lies about the Iraq war was supposed to have taught the mainstream media a lesson about accepting convenient messaging without doing a proper independent investigation.