The U.S. flag flies at half staff in front of the Army's III Corps headquarters at Fort Hood, Texas, on Friday, Nov. 6, 2009. (AP Photo/LM Otero)

Photo by: LM Otero

The U.S. flag flies at half staff in front of the Army's III Corps headquarters at Fort Hood, Texas, on Friday, Nov. 6, 2009. (AP Photo/LM Otero)