Washington Post reporter Steve Fainaru traveled with several groups of security contractors to find out what motivates them to put their lives in danger every day. What emerges is a searing, revealing, and sometimes darkly funny look at the men who live and work in the battlefields of Iraq: some are desperate, some are confused, and some are just out for a lark. Some disappear into the void that is Iraq and are never seen again. It's not a pretty picture that Fainaru reveals, but it is brutally real and shockingly honest.