Well, yea, people were afraid. Afraid of another Al Qaeda strike, just as bad as 9/11. And the Bush admin played on those fears to make a case for Iraq, by implying links between Saddam and Bin Laden and making it seem that as long as Saddam was in power, we'd be at risk of another 9/11. That's how they largely sold the war to people. Without 9/11 (or any other theoretical massive terrorist attack to take its place), do you think it would have been possible to go to war with Iraq?