Flying the airliner into a building killing thousands is no more cruel than scalping a child, raping a woman before killing her, sticking dynamite into the privates of women and detonating it, etc. Yes, the 9/11 tragedy was an atrocity. But it was one of the worst massacres ever committed by a terrorist group. Things like that rarely happen. With terrorism, a single act rarely kills more than a few. The point I'm making is that there are groups out there that are more accepted who do the same, or worse things than terrorist groups. I'm not sure what you were trying to say in the first part of the post. I agree with it though.