Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. China Defends Internet Censorship Practices 08 June 2010 computer with lock China says it will maintain its tight controls on the Internet in order to preserve social unity. A 31-page policy paper released by the government Wednesday says at least 380 million Chinese citizens, or about 29 percent of the population, have access to the World Wide Web. The paper says the government plans to boost those numbers to 45 percent during the next five years. Beijing is not promising to remove barriers to certain websites such as Facebook, Twitter and YouTube, a process critics have dubbed "The Great Firewall of China."  The policy paper says the government's Internet controls are aimed at protecting state security and the national interest, including blocking websites that promote "ethnic hatred and secession," pornography and violence. The paper asserts Chinese sovereignty over cyberspace within its borders, and demands that the Internet policy be "respected and protected" by foreigners.  The paper's release comes months after U.S.-based Internet giant Google announced a series of cyber attacks on its Chinese operations, which it says was aimed at accessing the e-mail accounts of Chinese human rights activists.  Google moved its main search service to the Chinese territory of Hong Kong.  Some information for this report was provided by AP, AFP and Reuters. .