"On 9/11, the U.S. Military Was Preparing for a Simulated Nuclear War"

"While September 11, 2001 is well known as the day when the U.S. suffered its worst terrorist attack, what is little known is that it was also a day when large sections of the armed forces around the nation had been preparing to fight a simulated nuclear war, as part of major training exercises being conducted at the time."

And then they nuked the WTC.