Vuthy Huot, deputy director for RFA’s Khmer language service, remembers how his parents waved goodbye to him when he was 13. “I was very upset. That was the first time I was separated from the family,” Vuthy said recently from his office at Radio Free Asia’s Washington headquarters. “But my father tapped me on my shoulder and said, ‘Stay strong, we will come back and get you as soon as we settle down in Phnom Penh.’” The first year under the Khmer Rouge was the most difficult. Vuthy was sent to