There are terrorism bases in Xinjiang. They raise fund for terrorism. Some of Xinjiang musilims have the same belief as ISIS. They killed civilians at railway station. But western people don't believe it. Xinjiang terrorist brought a lot of troubles to many Chinese cities even including Shanghai.
When attacks happend in Western World, Chinese never said, 'They are not terrorist. They are just part of muslims who fight for their rights while western people persecutes them.' All the world should have sympathy for each other agasint terrorism.