U.S. Air Force Col. Matthew Hummel, 192d Wing deputy commander, and Hans Augustus, 633d Contracting Squadron deputy commander, share their experiences during the attacks on Sept. 11, 2001. Nearly 3,000 Americans lost their lives that day, forever changing the course of U.S. history. (U.S. Air Force video by Senior Airman Olivia Bithell and 2nd Lt. Jahnaya Cosby) More