>On May 10 Radio Phnom Penh broadcast the extraordinary call to exterminate the Vietnamese race and "purify" its own ranks. "In terms of numbers, one of us must kill thirty Vietnamese . . . that is to say, we lose one against thirty. We don't have to engage 8 million people [Cambodia's presumed population]. We need only 2 million troops to crush the 50 million Vietnamese, and we would still have 6 million left."