Facebook has announced revised guidelines concerning user data the company discloses to researchers. In 2012, Facebook subjected 700,000 users to an "emotional" test by manipulating their News Feeds. Facebook did not get users' permission to conduct this study or notify users that their data would be disclosed to researchers. In response, EPIC filed a formal complaint to the Federal Trade Commission. "The company purposefully messed with people's minds," states the EPIC complaint. EPIC has also asked the FTC to require that Facebook make public the News Feed algorithm. Facebook is also currently under a 20 year consent decree from the FTC that requires Facebook to protect user privacy, as a result of complaints brought by EPIC and a coalition of consumer privacy organizations in 2009 and 2010. The new guidelines have improved Facebook's research process, but they still raise questions about human subject testing by advertising companies. EPIC still believes the NewsFeed algorithm should be made public. For more information, see EPIC: In re: Facebook (Psychological Study) and EPIC: Federal Trade Commission.