And the Oscar goes to ... The Wounded Cabinet

The Hurt Locker may have won oodles of Oscars, but the title makes no sense across this side of the pond.

What exactly is a 'hurt locker'? An injured key? An incapacitated canal-worker? An emotional gaoler?

Apparently it is an American-English phrase meaning a place of pain, which I guess sums up being a bomb-disposal expert on any front line, not just Afghanistan and Iraq.