Announcement by Eva Galperin: “Back in December of 2010, Facebook debuted its tag suggestion feature, which works by using facial recognition technology to examine photos in which you’ve already been tagged, and then creating what Facebook calls your “photo summary” or “photo comparison information,” or what we’ll call your “facial fingerprint.” Using this information, FB suggests your name to your friends when they upload a photo of you, and invites them to tag you in that photo. Over the last few months, Facebook has been slowly rolling this feature out to all of its users, which caught the attention of security firm Sophos, The New York Times, and the European Union, which has launched a probe to investigate the new feature.”