In this photo released by a friend of Cai Wei, Cai Wei poses for a photo in Beijing in June, 2018. More than a year after two young men, including Cai Wei, disappeared from their Beijing homes, they are set to be tried Tuesday, May 11, 2021 in a case that illustrates the Chinese government's growing online censorship and sensitivity to any criticism of its COVID-19 response. (Friend of Cai Wei via AP)