Donald Rumsfeld
The United States was attacked on September 11, 2001 by al Qaeda terrorists who hijacked commercial airliners and crashed them in coordinated strikes into both towers of the World Trade Center in Lower Manhattan, New York City and the Pentagon in Washington, D.C. The fourth plane crashed into a field in Shanksville, Pennsylvania, and its target was likely a prominent building in Washington, D.C., most probably either the Capitol Building or the White House. Within three hours of the start of the first hijacking and two hours after American Airlines Flight 11 struck the World Trade Center, Rumsfeld raised the defense condition signaling of the United States offensive readiness to DEFCON 3, the highest it had been since the Arab-Israeli war in 1973.
Ahmed al-Ghamdi
On the morning of September 11, 2001, Ahmed left the hotel with Hamza, the two of them sharing a taxicab to get to Logan International Airport. There, Ghamdi showed his Virginia ID Card as identification, and boarded Flight 175 where he sat the furthest back of the hijackers, in seat 9D, helped to hijack it, and assisted as the plane crashed into the World Trade Center. Ahmed and Hamza al-Ghamdi pushed the passengers and crew to the back of the plane while Fayez Banihammad and Mohand al-Shehri killed the pilots Victor Saracini and Michael Horrocks allowing Marwan al-Shehhi to take control of the plane.