Jurgen Habermas

What was new was the symbolic force of the targets struck. The attackers did not just physically cause the highest buildings in Manhattan to collapse; they also destroyed an icon in the household imagery of the American nation.

I don't believe in writer's block. Think about it - when you were blocked in college and had to write a paper, didn't it always manage to fix itself the night before the paper was due? Writer's block is having too much time on your hands.