China names head of new national security office in Hong Kong - Reuters
https://www.reuters.com/article/us-hongkong-protests-china-appointments/china-names-new-head-of-national-security-office-in-hong-kong-idUSKBN2440EQChinese Official, Wang Yang, Tests New Political Approach - The New York Times
https://www.nytimes.com/2011/12/31/world/asia/chinese-official-wang-yang-tests-new-political-approach.htmlWith Security Law as a Cudgel, Beijing Cracks Down on Hong Kong - The New York Times
https://www.nytimes.com/2020/07/31/world/asia/hong-kong-election-national-security-law.html