Chinese Internet users are now required to register their real names to upload videos to Chinese online video sites, an official body said, as the Communist Party tightens its control of the Internet and media to suppress anti-government sentiment. The new rule has been implemented to “prevent vulgar content, base art forms, exaggerated violence and sexual content in Internet video having a negative effect on society,” China’s State Administration of Press, Publication, Radio, Film and Television (SARFT) said on its website on Monday. Online video sites are often a lodestone for comment and critique on social issues in China, with users uploading videos documenting corruption, injustice and abuse carried out by government officials and authorities. Online video sites are extremely popular in China, with 428 million users.