BEIJING (AP) – Footage of a Chinese general discussing sensitive spying cases has been leaked on video sharing site YouTube.

The footage of a talk by Maj. Gen. Jin Yinan appears to be a potentially embarrassing failure of secrecy for the usually tightlipped military. Some of the cases had been publicly announced, but many details were secret.

Among those discussed was former ambassador to South Korea Li Bin, who was sentenced to seven years for corruption. Jin said Li had actually been discovered passing secrets to South Korea, but the allegations were too embarrassing to make public.

China’s Defense Ministry did not immediately respond Monday to faxed questions about the footage. Calls to the National Defense University where Jin is a lecturer rang unanswered