Marine Joke making the rounds

A Marine is working on a Police Training and Transition (PTT) team. Two of his Iraqi Police trainees grab an insurgent, who calls out "By Hussein, let me go!" The IPs drop the insurgent, who runs away.The Marine, astonished, asks why they released the man, and the IPs explain: "He asked for mercy by Hussein, the son of the Prophet, and custom demands that we set him free." A week or two later, the Marine is captured by insurgents. He remembers the IPs, and decides to give it a whirl, so he calls out "By Hussein, let me go!" The leader of the insurgents stares at him for a moment, and then says to the others: "Not only is he an American dog, he's a Shiite too! Kill him!"