I just wanted to remind everyone that the people that did this to our country are not evil people -- they, as a group, don't do it because they hate Americans per se, they do it for other purposes. They believe that what they are doing is just, and for that, you can't blame them. In a lot of cases, even individuals who commit murder do it for reasons other than "just wanting to kill someone". This happened in years prior to 2001, and it still goes on today.
I do not believe the terrorists who committed the acts personally are evil people at all. I do not have a fondness for them, but I try to understand where they are coming from in wanting to do this. I don't think I will ever understand, though.