"It's another unseen expense of the war,"

800 civilians who worked for Pentagon dead

Flora Patino holds a photo of her son, Hector C. Patino, at the family’s cemetery plot in San Antonio, Friday, Feb. 16, 2007. Patino, 58, was driving a truck for a Halliburton subsidiary in the heavily fortified Green Zone in Iraq when he was killed in a friendly-fire incident at an Australian checkpoint. In a largely invisible cost of the war in Iraq, nearly 800 civilians working under contract to the Pentagon have been killed and more than 3,300 hurt doing jobs normally handled by the U.S. military, according to figures gathered by The Associated Press. (AP Photo/Eric Gay)