President Barack Obama speaks to troops, service-members and military families at the 1st Aviation Support Battalion Hangar at Fort Bliss ,Friday, Aug. 31, 2012, in El Paso, Texas. (AP Photo/Tony Gutierrez)

Photo by: Tony Gutierrez

President Barack Obama speaks to troops, service-members and military families at the 1st Aviation Support Battalion Hangar at Fort Bliss ,Friday, Aug. 31, 2012, in El Paso, Texas. (AP Photo/Tony Gutierrez)