This clip from Current Tv has some shocking imagery from China's Xinjiang province.
Harmony has been hard to achieve in Xinjiang, a rugged region three times the size of Texas with deserts, mountains and the promise of huge oil and natural gas reserves. Xinjiang is also the homeland for 9 million Uighurs (pronounced WEE-gers), a Turkic-speaking group.
Many Uighurs believe the Han Chinese, who have been flooding into the region in recent years, are trying to crowd them out.
The ethnic strife comes as an embarrassment for the Chinese leadership, which is getting ready to celebrate the 60th anniversary of Communist rule and wants to show it has created a stable country.