The US based Council on Foreign Relations says that unwelcome views may be censored by authorities who exploit the vagueness in laws concerning publication of state secrets. Major media outlets receive guidance from the Chinese Department of Propaganda on what content is politically acceptable. The PRC bans certain content regarding independence movements in Tibet and Taiwan, the religious movement Falun Gong, democracy, the Tiananmen Square protests and massacre of 1989, Maoism, corruption, police brutality, anarchism, gossip, disparity of wealth, and food safety scandals.