In Hong Kong and the Future of Freedom, Arthur Waldron explains how the flap over Article 23 (a security law for Hong Kong that would have allowed searches without warrants; long prison terms for the disclosure, for instance by journalists, of so-called state secrets (in China, economic data can be thus classified); and the banning in Hong Kong of groups banned in China, which includes the Roman Catholic Church). If the bill passes, the Hong Kong government will presumably want to enforce it, but if it does it will alienate the people of HK. If it doesn't pass, the Communists look impotent. Link via The Gweilo Diaries; as he points out, this is mostly the Communists' own fault.