A memorandum of conversation between Mao Zedong and Pavel Yudin. Yudin informs Mao about the Soviet "uncovering" of Lavrentii Beria's espionage. Mao thanks for the information and notes that it will be highly useful for China. He hints that the political atmosphere in the CCP had been "unhealthy" as some people have tried to use others' mistakes to undermine their reputation. In this connection, Mao refers to Zhang Guotao as a Guomindang spy, and also speculates that Wang Ming may have been recruited by the Guomindang as early as 1930.