BEIJING (AFP) - China's state media on Friday accused Western countries of "double standards" in their fight against terrorism, ahead of the 10th anniversary of the 9/11 attacks. The comment piece by the official Xinhua news agency blamed Washington in particular for turning a "blind eye" to the damage caused by extremists in Russia's Chechnya and in China's own far-western region of Xinjiang. Nearly 10 years after 9/11, Xinhua said the fight against terror was "far from over", with terrorists changing tactics and increasing "collaboration with separatists and religious extremists". "A bigger challenge to the world's anti-terror effort, though, is a lack of a common standard," the comment said. "In particular, the United States and its Western allies have repeatedly used double standards on anti-terror issues, which have obstructed the progress of the global effort." Xinhua pointed to the United States' refusal in 2009 to extradite back to China members of its mainly Uighur minority held at US military prison camp Guantanamo Bay - who were cleared of wrongdoing - as an example of double standards. The United States refused to repatriate the Uighurs on the basis they would face almost certain persecution.