I disagree with the claim the 9-11 changed the world. There was violence, hatred and killing before 9-11, and there still is violence, hatred and killing after 9-11. What bothers me the most about this "9-11 has changed the world" claim is that in the minds of some, it justifies putting the U.S. under authoritarian rule. I know the U.S. is a long way from that, but there are those who say another 9-11-sized attack could make that happen. But more to the point, I prefer to live in freedom and risk being hit by a terrorist attack than live under authoritarian rule where there's (supposedly) a greatly-reduced risk of terrorist attack -- especially since I believe authoritarian rule IS a form of terrorism.