The death of the Chinese secret service chief & the mysterious Central Security Bureau

Chinese secret service agency is called the Central Security Bureau. Chinese leaders attach the most importance to this agency. It protects their safety and is used to spy on other senior leaders. The Bureau has played an essential role in helping Deng Xiaoping and Xi Jinping sack their political opponents. Recently, one of Xi's former security chiefs is rumored to have died. The unusual silence on his death has caused speculations.