During World War II, the Japanese imperial authorities abducted, coerced, tricked and sometimes recruited hundreds of thousands of women from Japan's colonial empire to become sexual slaves for soldiers. Sometimes minors, these women were called "comfort women" and were raped repeatedly in brothels near the front lines. With only a handful of survivors still alive in China, our correspondents met one of them: 95-year-old Peng Zhuying. She is determined to share her story in a country where the subject remains taboo.