On May 28, 2014, some 7,000 people gathered in a stadium in China's northwestern Xinjiang region. But they had not come to watch the local football team or any other grand sporting event. Instead, the authorities paraded scores of prisoners dressed in orange jumpsuits. Armed soldiers guarded the exits. In the patently unfair, open air trial that followed, 55 people were found guilty of a range of offenses linked to violent attacks in the region and jailed.