Bullets. Lots of bullets.

US soldiers in Iraq and Afghanistan are firing (do not click through to the original Belfast Telegraph story, which crashes Firefox)
250,000 bullets for every insurgent killed. Really, really bad shots? Or just really careful? “Sarge, I thought I’d probably killed him after shooting him 100,000 times, but I shot him another 150,000 times, just to be sure.” “Good thinking, private, you can never be too sure.”