WRH
You really should read those accident reports; not the press reports. You have simplified the chain of events to fit your "point of view", untroubled by real knowledge though it maybe.
All four planes on 9/11 we forcibly taken, not the first three. Flight 93's passengers tried to recover the plane and crashed in the ensuing battle. The hijackers just didn't walk in and ask for the planes and the crews gave their planes to them. To say otherwise is to display your total lack of knowledge of history.
GF