By Stanley Lubman

China's Communist Party made two major announcements on Tuesday night: The first revealed that former security czar Zhou Yongkang was being investigated for "discipline violations." The second, related to the first, was that rule of law would be the focus of the party's annual conclave in October. The reputation and legality of China's police, courts and prosecutors suffered during Zhou's tenure as head of the country's security apparatus. Legal reform plans already put on the table could help...