FILE - Guard towers stand on the perimeter wall of the Urumqi No. 3 Detention Center in Dabancheng in western China's Xinjiang Uyghur Autonomous Region on April 23, 2021. China's discriminatory detention of Uyghurs and other mostly Muslim ethnic groups in the western region of Xinjiang may constitute crimes against humanity, the U.N. human rights office said in a long-awaited report released Wednesday, Aug. 31, 2022. (AP Photo/Mark Schiefelbein, File)