Hong Kong police took away seven people who appeared in Causeway Bay on Thursday evening carrying flowers and dressed in black to mark the 37th anniversary of the Tiananmen Square crackdown.They included Chan Po-ying, former chairwoman of the now-defunct League of Social Democrats opposition group, and activist Virginia Fung King-man.Police said they stopped and searched five men and two women, aged between 17 and 79, for allegedly disrupting order in the area around Great George Street and...