People use computers at an Internet cafe in Changzhi, north China's Shanxi province June 20, 2007. The blocking of Flickr is the latest casualty of China's ongoing battle to control its sprawling Internet. Wikipedia, and a raft of other popular Web sites, discussion boards and blogs have already fallen victim to the country's censors. China employs a complex system of filters and an army of tens of thousands of human monitors to survey the country's 140 million Internet users' surfing habits and surgically clip sensitive content from in front of their eyes. To match feature PRIVACY-CHINA/ REUTERS/Stringer (CHINA) CHINA OUT
