I think it's natural to feel jumpy, I've noticed here in LA that folks seem very jumpy about airplanes overhead. The idea that 3 of the 4 airplanes used in these horrid acts of terrorism were heading towards this fair city of mine is just one more little piece of "oh my!" to add onto our pile of anxiety, fear, and disgust for some of the folks I've seen over the past few days here in LA. However, I've also adopted that "be a little more kind and watch for opportunities to help others" attitude to counter the fear I see, because I know that the brotherhood of man is stronger than any act of terrorism.
What really cheeses me off is that during these horrible events and in the days following, the amount of e-mail spam I've received has steadily grown! What the hell?!?