1986.09.01
·Reported
·Importance IV
·Sources 2
·France
AFP published an exclusive wire service, making public for the first time the defection of the son of an old revolutionary and senior intelligence official to the United States, which led to the dismissal of Ling Yun, the first Minister of state security (MSS).
1985.11.22
·Verified
·Importance IV
·Sources 2
·United States
After gathering evidence for three years, the FBI arrested Larry Wu-Tai Chin, who had infiltrated the CIA for decades, on espionage charges based on clues provided by Yu Qiangsheng.
1985
·Verified
·Importance V
·Sources 2
·United States
Yu Qiangsheng defected to the United States via a CIA-arranged flight through Hong Kong, causing massive tremors within the Chinese Communist Party.
1981
·Reported
·Importance IV
·Sources 2
·Beijing
Yu Qiangsheng, an official of the Chinese Ministry of State Security, was recruited by the CIA in Beijing and began providing intelligence.
1968.05
·Verified
·Importance II
·Sources 1
·Hangzhou, Zhejiang
Zhang Langlang was arrested in Hangzhou on charges including viciously attacking central leaders. At the time, Yu Qiangsheng served as the head of the special investigation team.