For 15 years, Beijing bureaucracies were skilfully navigated by Yalqun Rozi to publish textbooks that taught classic poems and folk tales to millions of his fellow minority Uighurs in China far western region of Xinjiang.
Three years ago when the ruling Communist Party launched what it says is a campaign against ethnic separatism and religious extremism in regions of Xinjiang. Suddenly even respected public figures like Rozi were being arrested, caught up in a crackdown that critics have said amounts to cultural genocide.