On September 10, 2001, the National Security Agency’s “electronic ears picked up two intercepts, both in Arabic, from the al Qaeda plotters. The intercepts disclosed that a major attack was set for the next day. …The discussions were between terrorists in the United States and al Qaeda operatives abroad. With the huge volume of intercepted and translated messages, the key intercepts were not sent to government intelligence consumers until September 12–a day after the attacks.”
– Bill Gertz, Breakdown, Pages 129-130