The Uyghurs are the largest ethnic group in ethnically diverse Xinjiang, making up just over 45% of the population. The Uyghur movement's use of militant separatism has resulted in it being described as a potentially dangerous movement.[2] In particular, the Eastern Turkestan Islamic Movement (ETIM) is a proscribed terrorist organisation according to classification by the United Nations. Among other incidents, East Turkestan independence movement organisations have claimed responsibility for the 2008 Kunming bus bombings; however, China denied that the group was responsible.[3] The Uyghur Human Rights project alleges that China often exaggerates these threats to justify repression of the Uyghur people.[4]