Zhou Yongkang
One of the longest-serving Ministers of State Security was Jia Chunwang, a native of Beijing and a 1964 graduate of Tsinghua University, who is reportedly an admirer of the CIA. He served as Minister of State Security from 1985 until March 1998, when the MSS underwent an overhaul and Xu Yongyue was appointed the new head of the organization. Jia was then appointed to the Minister of Public Security post, after 13 years as head of the MSS. The MSS was under the influence of Zhou Yongkang until his ouster and conviction for corruption in 2014. One of the people responsible for "taking down" Zhou Yongkang was Chen Wenqing of the Central Commission for Discipline Inspection, who was nominated Minister of State Security by Chinese Premier Li Keqiang in 2016, partly as a reward for purging Zhou and his network.