Deliberate, systematic human rights abuses are happening in China’s northwest. Reporting and research published in recent weeks shows that the Chinese government is targeting the Xinjiang Uighur Autonomous Region’s roughly 11 million Muslims for “re-education.” Anywhere from several hundred thousand to more than a million people have been or are being held in “centers,” where they have to “disavow their Islamic beliefs, criticize themselves and their loved ones and give thanks to the ruling Communist Party.” Some are tortured. While several U.S. lawmakers have called for sanctions, much of the world remains silent, including the Organization of Islamic Cooperation, which calls itself “the collective voice of the Muslim world.” What should the international community do?