The Enemy of My Enemy is My Friend?

A young Foreign Service officer posted to Vietnam, his girlfriend, a ride in the country, and what? Cambodia is on fire? Why? The first ever Cambodian refugees tell Ken Quinn, the first person ever to report on this, that the Khmer Rouge has turned. No longer boy-scout revolutionaries, they operate like Stalin, like Hitler, but no one in the United States listens. Why? It was easier not to. Until the skulls piled up.