<p>In 1972, Jan Wong became one of only two Westerners admitted to Beijing University at the height of the Cultural Revolution. One day, a student, Yin Luoyi, sought Jan's assistance in going to the United States. Wong, then a starry-eyed Maoist, reported Yin to the authorities. Yin promptly disappeared.<br><br><br>Now, thirty-three years later, Wong returns to Beijing to search for the woman who has haunted her conscience. She hopes to apologise...