Remembering 9/11
First Lieutenant Christine Froeber, 944th Mission Suppor Group executive officer, sings the National Anthem during the Arizona 9/11 Remembrance and National Day of Service event held Sept. 11 in Scottsdale, Ariz. Lieutenant Froeber, a former member of the Air Force's Tops in Blue, performed during the morning memorial service that included reading all 9/11 victims' names and the displaying of the three-story high National Unity Flag. The Unity Flag, currently on national tour, is a tribute to all 9/11 victims and is signed by the entire U.S. Senate. (Courtesy photo)