Hong Kong police on Wednesday arrested four members of a pro-democracy group known for its yearly vigil commemorating the 1989 Tiananmen Square crackdown after they refused to cooperate in a national security investigation.The four members of the Hong Kong Alliance in Support of Patriotic Democratic Movements of China, including vice chairwoman Tonyee Chow, were arrested as the group rejected a police demand to provide information on its operations, the group said Wednesday.In a letter sent to the alliance in August, national security authorities referred to the group as a foreign agent and…READ FULL ARTICLE