It sounds unthinkable, but there are times, according to the rules of war, when it's morally acceptable to shoot a child.
A 12-year-old can, of course, fire an AK-47, but the more gut-wrenching decisions revolve around ambiguous situations. Could a child with a cell phone be a lookout for insurgents or send a detonation signal to an IED bomb?
These were the types of scenarios our soldiers had to face in Iraq. Countless soldiers have returned haunted by civilians they killed because the civilians panicked and ran through a checkpoint or reached for something too quickly.