Complete 911 Timeline: Military exercises up to 9/11
Paul Thompson has updated his 9/11 timeline. His newest update is about 9/11 related military exercises. This update provides extensive coverage of events prior to 9/11 involving aircraft being used as weapons as well as the wargames of 9/11.

Between 1991 and 2001: NORAD Exercise Simulates Crash into Famous US Building (WTC)
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Between October 24 and 28, 2000: Military Holds Exercise Rehearsing Response to a Plane Crash at the Pentagon
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May 2001: Medics Train for Airplane Hitting Pentagon
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Early August 2001: Mass Casualty Exercise at the Pentagon Includes a Plane Hitting the Building

Hrm.. Almost sounds like Condoleeza Rice lied when she said no one could have imagined a plane being used as a weapon to crash into a building. Do a search for more on her and her perjury under oath to the 9/11 Commission.

This update is quite extensive, take a look and let me know what catches your eye.