China’s Ministry of Education has published a list of more than 400 officially approved educational programs jointly run by Chinese and foreign colleges, in a bid to clamp down on fake diploma mills. The problem of fake diplomas has been highlighted by a recent scandal, now the subject of a libel suit involving Microsoft China’s former president Tang Jun, who is accused by blogger and self-appointed watchdog Fang Zhouzi of falsely claiming to have a doctorate from Caltech. Mr. Tang has denied this, blaming a publisher’s error, but controversy was further fueled by his claim that he earned his doctorate from Pacific Western University, which a 2004 U.S. government report called a diploma mill. The list also names 10,000 colleges in 33 countries the Chinese government considers legitimate.