China's bizarre saga of Yan Mingfu and Yan Baohang

Yan Mingfu and his father Yan Baohang are the protagonists of a bizarre Chinese century saga. Both Yans served the Great Chairman Mao, the father as a super spy, and the son as chief interpreter. Today, their legacy is swept under the carpet by Xi Jinping's government. Yet Yan Mingfu's memoirs are considered a "treasure trove of historical truth."