The most notice given to Major Kevin Nasypany and his team at NEADS was eight minutes before American Flight 11 hit the North Tower. They had less than four minutes’ notice about American Flight 77, and they were told that it was missing, not hijacked. NEADS was notified about United Flight 175 only eleven seconds before it hit the South Tower. The U.S. military’s guardians of the sky received no advance warning and had no knowledge of United Flight 93 before it crashed.
