9-11 showed Americans are the most civilized of any people. You look at how Europeans are over a soccer game, but Americans look out for each other and react like responsible people.
9-11 was shock, plain and simple, and you can't hold that out as an example of all Americans. I think given the right opportunities, some Americans would lose any and all civility (not the best way to say it) they have. I'm not talking sports riots after this or that team wins an NFL or NBA championship. You've seen the Americans I'm talking about - the ones who take advantage of situations (race riots back in the 60s, the Rodney King crap, etc.). The ones that are so upset over something they help themselves to other people's property, etc. The ones who were looting around the WTC.
Like I said, I'm glad I'm in an area where I can put a lot of distance between myself and my neighbors, and times like these make me glad that my wife is a dang good shot.
I know most Americans are good people, but I also know that many aren't.