However, the suppression of the Uyghurs has more to do with the fact that they are separatist, rather than Muslim. China banned a book titled "Xing Fengsu" ("Sexual Customs") which insulted Islam and placed its authors under arrest in 1989 after protests in Lanzhou and Beijing by Chinese Hui Muslims, during which the Chinese police provided protection to the Hui Muslim protestors, and the Chinese government organized public burnings of the book.[154][155][156][157][158][159][160][161][162][163] The Chinese government assisted them and gave into their demands because Hui do not have a separatist movement, unlike the Uyghurs,[466] Hui Muslim protestors who violently rioted by vandalizing property during the protests against the book were let off by the Chinese government and went unpunished while Uyghur protestors were imprisoned.[164]