FILE PHOTO: Zheng Yanxiong, director of Hong Kong’s national security office, speaks at a ceremony marking the National Security Education Day in Hong Kong, China April 15, 2021. REUTERS/Lam Yik
FILE PHOTO: Zheng Yanxiong, director of Hong Kong’s national security office, speaks at a ceremony marking the National Security Education Day in Hong Kong, China April 15, 2021. REUTERS/Lam Yik