A nice piece by the Cato Institute on terrorism’s real and imagined impact (pdf):

Even with the September 11 attacks included in the count, the number of Americans killed by international terrorism since the late 1960s (which is when the State Department began counting) is about the same as the number of Americans killed over the same period by lightning, accident-causing deer, or severe allergic reaction to peanuts.

[Via The Tattered Coat]