回复：政治局五常委有三个不知道，这政治局决定实在太隐秘了点。

This eavesdropping incident led to the downfall of Yang Shan-kung and Yeh Chi-lung, Mao's long time confidential secretary. Yeh executed the Polibureau 's "decision" and ordered Mao's surrounding workers to keep it a secret in the name of Party's discipline. Mao was so disgusted and felt betrayed by Yeh's action. Recording in the meetings is fine but secret recording in Mao's private quarters led one to believe the ultramotive of those decision makers.