http://209.85.135.104/search?q=cache:oD6wNGkLZJwJ:www.american-buddha.com/911.syntheticterrorpreface2nd.htm+CIA+terror+asset+too+compromising+to+be+allowed+to+roam&hl=de&gl=de&ct=clnk&cd=2It mentions the 15 drills on 911, which is a big part of the how they did it.
THE FIFTEEN DRILLS OF 9/11
Ruppert's Crossing the Rubicon is aware of five exercises related to 9/11 -- Vigilant Warrior, Vigilant Guardian, Northern Vigilance, Tripod II, and the National Reconnaissance Office drill. The first printing of my book discusses these, plus Northern Guardian, Amalgam Virgo, and a local DC-area drill, for a total of eight. As of this writing, it has been established that there were as many as 15 drills either ongoing on 9/11 or directly related to the events of that day. This figure may be slightly higher or lower according to the counting criteria used.
911 WAR GAMES AND TERROR DRILLS
Amalgam Virgo Air defense against rogue state/terror cruise missiles, hijackings
Vigilant Guardian Air defense against hijacking
Northern Guardian Air defense
Vigilant Warrior NORAD exercise
Northern Vigilance NORAD deploys fighters to Alaska, northern Canada
Amalgam Warrior Large live-fly air defense and air intercept, tracking surveillance
Global Guardian Nuclear warfighting, "Armageddon"
Crown Vigilance Air combat command exercise
Apollo Guardian Large scale live-fly air defense and air intercept, tracking surveillance
National Reconnaissance Office (NRO) Crashing planes into buildings
AWACS AWACS over Florida, Washington DC
Fort Meyer, Virginia Firemen (Pentagon), "aircraft crash refresher course" for firefighters
TRIPOD II, Manhattan Response to biochemical attack
Timely Alert II Emergency response to bomb attack
Ruppert focuses exclusively on the drills which crippled air defense, the ones we may call LIHOP drills. It is of course vital to know about these war games which moved fighter planes to northern Canada and Alaska, which introduced fake radar blips on the screens of military personnel, and which deployed civilian and military aircraft in the guise of hijacked airliners. This was one way the vaunted US air defense in the northeast corridor was paralyzed for about one hour and forty-five minutes. But even this argument has limits. Loyal military officers would have positioned their interceptor assets in the skies over Washington DC to prevent their recurrent nightmare, the decapitation of the national command authority by a lightning stroke. The fact that this was not done for so many minutes is irrefutable evidence that the commanders were not loyal. It does no good to argue that red-blooded US fighter pilots would never have obeyed a stand-down order when this is manifestly exactly what they did, for the critical hour and three quarters.
DU seems to mess up the link
http://www.american-buddha.com/911.syntheticterrorpreface2nd.htm you can go there but you have to type in your email