Colin Scoggins, the military liaison at Boston Air Traffic Control (ATC), calls the Northeast Air Defense Sector (NEADS) at 9:21 on 9/11. He tells them there is a third hijacked aircraft, inbound to Washington, but misstates its number (he says it is American 11, it is actually American 77) and position (he says it is NE of Washington, in reality it is SW). American 77 was hijacked before 9:00 a.m., but this is NEADS' first notification of the third hijack, because neither the other ATC facilities nor the National Military Command Center at the Pentagon are providing it with any information. A timeline for Flight 77 can be found here: http://www.historycommons.org/timelin...