The administration of Chinese leader Xi Jinping issued a rare warning against his rivals at a recent national police meeting, a move that an expert says indicates that the communist regime faces an unprecedented internal crisis since the downfall of a Chinese vice minister of public security. On Jan. 24, Xi’s close ally and party chief of the Ministry of Public Security Wang Xiaohong announced at a conference the formation of a leadership panel dedicated to “eradicate the baneful influence of the political clique led by Sun Lijun,” the former deputy head of the ministry. Earlier, China’s state broadcaster CCTV released a 5-part documentary containing anti-graft propaganda titled “Zero Tolerance” shown on prime time from Jan. 15. In part 1, Sun and key members of his clique made appearances and gave public confessions. By official accounts, Sun’s group included four of his close allies. They were Gong Dao’an, former police …