Re: The 911 Coincidence Guide
To get to the point, the phone calls to loved ones that attest to the fact that the plane(s) had been overtaken and were being hijacked may be exactly what happened for evidentiary purposes, but landed elsewhere and drones hit the Pentagon and the Twin Towers.
As far as the black box, left behind for evidence of a hijacking.
It could have been planted there before anyone arrived at the scene.
It could have been pre-recorded.