Beijing has expanded its top office overseeing Hong Kong affairs by appointing two veterans to head the newly established security affairs and propaganda departments, in a bid to better communicate its policies on the city, especially regarding the national security law. The State Council’s Hong Kong and Macau Affairs Office (HKMAO) on Thursday updated its organisation chart on its official website, confirming the establishment of the two departments. Two sources familiar with the matter said Wang Zhenmin and Zeng Jian, both of whom served the central government’s liaison office in Hong Kong earlier in their careers, had been put in…