Support WBURReporter's Notebook: Uighurs Held For 'Extremist Thoughts' They Didn't Know They HadPlay06:41Download AudioRob SchmitzMay 07, 2019 ShareUighurs at a detention facility in Kashgar study Mandarin. They also study Chinese law and a variety of vocational skills. NPR visited the facility as part of a Chinese government-sponsored tour. (NPR)