Shortly after the 9/11 attacks, I suggested to friends that they might have represented the peak of the terrorism bubble. Attacks, particularly against US interests until then had grown markedly more audacious with little seeming downside. It seems that my speculation then was more accurate than my later concerns. Fareed Zakaria cites research that finds terrorism is down since 2003, excluding Iraq and Afghanistan. James Taranto piles on (fourth item, “Terror on the Decline”).