As usual Moore made a couple of good points but took them too far--I agree with him about not letting Bush off the hook about WMDs. He doesn't get a pass because the intelligence was piss poor...you make damn sure you listen to EVERYONE if you are going to ask soldier to die and kill...there were people trying to give Bush information that refuted the intelligence, but he didn't want to hear it. I don't think Bush lied, but you can't write off what he did as an honest mistake. He made a negligent mistake, as did others. Big difference.
Moore's problem is that he throws everything out there, often times making overly broad connections, rather than just the most concise and powerful stuff. So you get a lot of stuff that doesn't stick to the wall--but some does. If he got a better filter, his arguments would come off more effectively.