Finally I can go outside!
Rejoicing over someone's death is perverse, in this case even from a perspective of pure math. "The war on terror" has killed 500 times as many arabs as the Trade Center attacks killed Americans. Hell, more Americans have died (from road side bombs, friendly fire, suicide, etc) in the attempt to carry out this revenge killing than were killed in the Trade Center. You have to have a really f*cked up sense of justice to think that makes any sense.