On January 27, 2004, the 9/11 Commission “heard a tape recording of the last known words of Betty Ong, a flight attendant for American Airlines Flight 11, the plane that crashed in to the North Tower of the World Trade Center [on September 11, 2001]. Ong had used an on-board phone to call airline supervisors to alert them of the hijacking. In a remarkably calm, steady voice, she described the terror aboard the plane. ‘The cockpit’s not answering, and somebody’s stabbed in business class,’ she explained. ‘I think there’s mace, that we can’t breathe. I don’t know. I think we’re getting hijacked.’ ”
– Philip Shenon, The Commission, Page 88