I understand your sensitivity Zenster but, with respect, perhaps you should just avoid the thread and that way you would see a total lack of responses.
I don't think anywhere else on Earth has a target with such potential for death and symbolism. I'm thinking the Reichstag in Berlin or the Houses of Parliament in London or the White House in Moscow. But none of these would result in the deaths of so many. To kill so many, you would need to hit a large crowd like the Love Parade in Berlin. I don't think anybody outside of Asia has buildings even approaching the size and scale of the WTC.