Article content The financial hub has taken a swift authoritarian turn since China’s imposition of a sweeping national security law last year and changes to its political system to reduce democratic participation and oust people deemed disloyal to Beijing. We apologize, but this video has failed to load. Try refreshing your browser, or Hong Kong leader says 'ideologies' pose security risk, teenagers need to be monitored Back to video At her weekly news conference, Lam expressed dismay at some residents mourning the death of a 50-year-old who stabbed a policeman before killing himself on July 1, the anniversary of the former British colony’s return to Chinese rule and the Chinese Communist Party’s centenary.