Hong Kong forces Tiananmen Square group to remove Facebook page

HONG KONG - Hong Kong police have forced one of the city's best-known activist groups to clean up its online presence, in latest sign of how authorities can use a powerful national security law to restrict online speech and enforce Chinese-style internet censorship. . The group, the Hong Kong Alliance in Support of China's Democratic Patriotic Movements, has for decades held annual vigils to commemorate the 1989 government massacre of pro-democracy protesters in Beijing. Even as the Chinese central government tried to erase the memory of the massacre on the mainland, the alliance operated freely in Hong Kong, which, as…