HONG KONG — Yuan-tsung Chen, an author, leaned forward in an oversize velvet chair to tell the story of the man so hungry that he ate himself. Once, that tale had seemed unbelievable to her. “I thought that was an exaggeration,” she said. But living in a village during the Great Leap Forward, Mao Zedong’s … Continue reading She Witnessed Mao’s Worst Excesses. Now She Has a Warning for the World.