Students at Beijing's Peking University, which was once a hotbed of pro-democracy activists. Photo: AFP
Students at Beijing's Peking University, which was once a hotbed of pro-democracy activists. Photo: AFP

Liberal Peking University professor threatened with expulsion

Students at Beijing's Peking University, which was once a hotbed of pro-democracy activists. Photo: AFP
Students at Beijing's Peking University, which was once a hotbed of pro-democracy activists. Photo: AFP
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