A story on the AP Newswire reminded me of something I had completely forgotten: that the pilot episode of The Lone Gunmen involved a government plot to crash a commercial airliner into the World Trade Center and blame it on international terrorists -- a plot which was averted at the very last second (in a disappointingly unrealistic fashion) by Our Intrepid Heroes.
Perhaps that's why it still doesn't seem real: because it's too close to something I knew was fake.