Bruce Schneier's answer:
There are actually several answers to this question. One, terrorist attacks are harder to pull off than popular imagination -- and the movies -- lead everyone to believe. Two, there are far fewer terrorists than the political rhetoric of the past eight years leads everyone to believe. And three, random minor terrorist attacks don't serve Islamic terrorists' interests right now.
We want to hear what you think about this article. Submit a letter to the editor or write to email@example.com.