于教授说：“我绝对相信中国国家安全部的能力，他们绝对不会错过这样一件大案。”

Yu to respond later Saturday, saying: "I absolutely believe in the abilities of China's state security ministry—it would not have missed such a big case."

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中国国家安全部实际上是于1983年才设，由当时的部副部长凌云出任第一任国家安全部部长。

Chinese Ministry of national security is actually to set up in 1983 by the then deputy minister of the Ministry of Lingyun served as the first minister of national security office.

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