You can find Army manuals that show you how to conduct counter-insurgency operations, make booby-traps, on how to conduct squad and platoon sized field operations. Basically, almost every army field training manual is available at most government surplus stores or on the Intardnet. You can even find instructions on how to make a nuclear bomb, so what's the big deal about getting the flight manual for a plane?
And Bodhi, your assertion that this will lead to more terrorist attacks is utter nonsense and just shows what a knee-jerk reactionary you are.
ack-ack