Published June 22. 2021 8:09PM Eva Dou, The Washington Post In May 2019, the Wuhan Institute of Virology's staff filed into an old-fashioned lecture hall. A local representative of China's National Administration for the Protection of State Secrets was at the lectern. The official, Tang Kaihong, discussed the national security risks of the institute's research and warned of infiltration efforts by foreign spies, according to an account published by the institute's parent organization, the Chinese Academy of Sciences. The researchers signed pledges to protect confidential information. The Wu...