"National Commission on Terrorist Attacks Upon the United States: Twelfth Public Hearing". 9-11commission.gov. 2004-06-17. Dicapai pada 2009-11-12."Available to us at the Command Center of course is the military cell, which was our liaison with the military services. They were present at all of the events that occurred on 9/11." (Sliney) "...there were military people on duty at the FAA Command Center, as Mr. Sliney said. They were participating in what was going on." (Belger)
