There were some OBL elements infiltrated into Xiinjiang around the time of 9/11. China supported Talibans behind the scene at the time. It was reported that China pulled their support upon learning it. If OBL pulled back Al Qaeda support from Xinjiang, we cannot rule out that China is back to business with OBL group. I wonder how China would treat this latest news: Is OBL's boys coming back to Xinjiang or is this an isolated small Jihadi operation?