FILE PHOTO: Pro-democracy activists Sam Cheung, Lam Cheuk-ting, Raymond Chan Chi-chuen and Owen Chow walk to a prison van to head to court, over national security law charges, in Hong Kong, China March 2, 2021. REUTERS/Tyrone Siu/File Photo
FILE PHOTO: Pro-democracy activists Sam Cheung, Lam Cheuk-ting, Raymond Chan Chi-chuen and Owen Chow walk to a prison van to head to court, over national security law charges, in Hong Kong, China March 2, 2021. REUTERS/Tyrone Siu/File Photo