 According to statements by Assange in 2010, submitted documents are vetted by a group of five reviewers, with expertise in different topics such as language or programming, who also investigate the background of the leaker if his or her identity is known.In that group, Assange has the final decision about the assessment of a document.Columnist Eric Zorn wrote in 2016 "So far, it's possible, even likely, that every stolen email WikiLeaks has posted has been authentic," but cautioned against assuming that future releases would be equally authentic.