Trying To Make Sense Of China's Cultural Revolution

Mao Zedong, chairman of the Chinese Communist Party, launched the Cultural Revolution 50 years ago this month. The movement was designed to re-assert Communist ideology and purge his enemies, but it devolved into a period of chaos and violence, with hundreds of thousands of people killed. And later, even the Communist Party labeled it a catastrophe. We ask Guobin Yang, who has studied the Cultural Revolution, to help us understand what happened.