Specifically, fallout from our government having spent close to every day of the last ten years since 9/11 telling us to be afraid. No, more afraid than that. Come on, let's see some FEAR here! ...What do you mean, you're not afraid? You some kinda commie pinko ay-rab muslim jihad turrrrist or sumthin'?
As Bruce Schneier keeps saying, REFUSE TO BE TERRORIZED. By our own government, or by anyone else.
As he points out in one of the links in the article of his I just linked to there, to justify our current level of Homeland Security spending we would have to foil 1,667 Time Square-style plots per year. (Clearly we're not getting enough terror plots for our money. Quick, hire more FBI agents-provocateur...) Lots of good links in that post.