Post journalists Finbarr Bermingham and Mimi Lau unpack the UN human rights report on conditions in China’s Xinjiang region and subsequent vehement rejection of it by Beijing; Kinling Lo on worries about drones flying over Taipei-controlled islands west of Taiwan as the US reaches another big arms deal; Japan-based correspondent Julian Ryall analyses Tokyo's concerns over Sino-Russian military drills on its doorstep and its plans to develop long-range missiles that could reach Russia and China.