"Over the course of 66 days in 1967, more than 4,000 'class enemies'--including young children and the elderly--were murdered in Daoxian, a county in China's Hunan province. The killings spread to surrounding counties, resulting in a combined death toll of more than 9,000. Commonly known as the Daoxian massacre, the killings were one of many acts of so-called mass dictatorship and armed factional conflict that rocked China during the Cultural Revolution....