Hong Kong police said Wednesday they have arrested 53 pro-democracy activists for alleged subversion under the national security law, in the largest such roundup under the territory's six-month-old law.Former lawmakers, including Wu Chi-wai, former chairman of the main opposition Democratic Party, are among those arrested in connection with an unofficial primary by the pro-democracy camp in July ahead of the postponed September Legislative Council election, according to local media.The arrests also likely marked the first time the law's subversion clause has been invoked. Of those arrested …READ FULL ARTICLE