By Charles Duhigg Times Staff Writer Los Angeles Times
NAJAF, Iraq (news - web sites) — Tucked behind a gleaming machine gun, Sgt. Joseph Hall grins at his two companions in the Humvee.
"I want to know if I killed that guy yesterday," Hall says. "I saw blood spurt from his leg, but I want to be sure I killed him."
The vehicle goes silent as the driver, Spc. Joshua Dubois, swerves around asphalt previously uprooted by a blast.
"I'm confused about how I should feel about killing," says Dubois, who has a toddler back home. "The first time I shot someone, it was the most exhilarating thing I'd ever felt."
Dubois turns back to the road. "We talk about killing all the time," he says. "I never used to talk this way. I'm not proud of it, but it's like I can't stop. I'm worried what I will be like when I get home."
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