Everyone's arguing about whether Saddam is right, about whether there is enough evidence against Bin Laden, etc. None of that matters.
Consider Saddam's real audience - the Arab world. Now, given a war of PR between Saddam and Bush, who do you think will win in Egypt? Or Iran (well, maybe bad example)? Or Pakistan, Saudia Arabia, etc? Hint: it won't be Bush.
Given that the US is going to do something (cause, try as I might, GW just isn't returning my calls), how do you suppose Arab people's are going to view it? Saddam and others are going to paint a pretty convincing picture of America as evil, and evil again. Saddam is going to hold more sway in that part of the world than he does in the US. We could go in with the most righteous, peaceful, Peace Corps on steroids plan, and the rhetoric in Arab countries would still paint a bleak picture of America's actions.
The message here is clear - do anything, and everything will get worse.
al queda is kicking themsleves for not knowing about the levees