Deputy Defense Secretary Ashton Carter stands in front of a MRAP all-terrain vehicle (M-ATV) at the Pentagon in 2009. (AP Photo/Manuel Balce Ceneta)

Photo by: Manuel Balce Ceneta

Deputy Defense Secretary Ashton Carter stands in front of a MRAP all-terrain vehicle (M-ATV) at the Pentagon in 2009. (AP Photo/Manuel Balce Ceneta)