From the NYT:
BEIJING —Chinese authorities on Monday accused Pakistan-trained Uighur separatists of planning and executing the first of two deadly attacks over the weekend that struck the ancient Silk Road town of Kashgar in China’s far-western Xinjiang region.
The piece goes on to report some skepticism about the Pakistan claim; Chinese authorities don’t like the idea that such incidents could be organized domestically. Nevertheless, the charge speaks to the deep suspicion in China that Pakistan is an unreliable and even treacherous ally. Before China will replace the US as Pakistan’s patron, Islamabad has to demonstrate that it is willing and able to crack down on any terrorism directed at Chinese interests.