in anycase if you don't believe the physical evidence... look at the money.
Donald Rumsfeld announced a 2.3 trillion budget anomaly THE DAY BEFORE... and where was this investigation happening? the same area where the "airplane" hit. An airplane without 4 ton turbine holes and "wings" that didn't even brake windows within the predicted flight path.
and that is just touching the surface of a billion questions not answered but the 'conflict of interest' 9/11 commission.
Tools of war are not always obvious. The worst weapon is an idea planted in the mind of man. Prejudices can kill, suspicion can destroy, and a thoughtless, frightened search for a scapegoat has an everlasting fallout all of its own.