" the American public doesn’t mourn contractor deaths the way we do the deaths of our soldiers. We rarely even hear about them. Private companies are under no obligation to report when their employees are killed while, say, providing armed security to tractor-trailer convoys running supplies into Iraq. In the 1991 Gulf War, the United States employed one private contract worker for every one hundred American soldiers on the ground; in the Clinton-era Balkans, it neared one to one—about 20,000 privateers tops. In early 2011, there were 45,000 US soldiers stationed inside Iraq, and 65,000 private contract workers there. "

― , Drift: The Unmooring of American Military Power