Here's what I think on 9/11. Did they know something Might happen. Probably. In New York probably. In New York City? Maybe. But on the When and How this attack might take place they probably had no clue. And what should they have done. Evacuate the entire city of New York. The events that happened were tragic, but I feel the goverment had no clue on how and when these things were going to take place.