Heh, how can you say the President lied to the American people, when the info he provided at the time was the best info he had (from the intelligence community)? You think he's a psychic? I think you're watching too much TV. People like Michael Moore would make you believe everything they film is the real truth.
At the time the address was given, that information (regarding the Nigerian yellowcake) had already been discredited by a few higher ups at the CIA as well as British intelligence agencies. They tried to make Tenet take the fall for it, but it later came out that he didn't support the decision to use that information the address. Bush may not have been aware of it, but if he wasn't, he should have been.
Additonally, there is the issue of the Saddam-9/11 link. Even to this day, the President and Vice-President claim that such a link existed, even though the 9/11 comission declared that was not the case, and no such link has been found elsewhere.
edit- If you had read the rest of the thread, you'd realize I'm pretty critical of Moore's methods in many cases. I don't watch TV, but I have read a lot of articles and essays about the war, and try to keep up as much as possible. I also view everything with a critical eye, so I have to say I'm somewhat offended by your comment.
The United States has every right to defend itself if it believes its security is under threat. It does not need ANY approval from the United Nation, or the international community.
Hmm, so you honestly believe the US' security was under threat by Iraq? That's pretty laughable, in my opinion.