After the Washington Ministerial, the CCP rallied “Uyghur and Kazakh scholars” to sign a letter criticizing the U.S. This looks like just another hoax

Kazakhstan Arrests Activist Who Exposed Atrocities in Xinjiang
Serikzhan Bilash, the leader of the NGO Atajurt, denounced the mistreatment and torture of 10,000 ethnic Kazakhs in the “transformation through educat