Police officers prepare to take part in a training exercise, Weng'an county of Guizhou province, June 5, 2012. Local police in Weng'an set up an anti-terrorism unit Tuesday to improve its emergency response capability. [Photo/Xinhua]
Police officers rappel down a building during a training exercise, Weng'an county of Guizhou province, June 5, 2012. Local police in Weng'an set up an anti-terrorism unit Tuesday to improve its emergency response capability. [Photo/Xinhua]