Snowden called Wikileaks' "hostility towards even modest curation" of their data releases "a mistake."
FILE - In this June 9, 2013 file photo provided by The Guardian Newspaper in London shows Edward Snowden, who worked as a contract employee at the National Security Agency, in Hong Kong. Former NSA systems analyst Edward Snowden, who is wanted by the U.S. for leaking details about once-secret surveillance programs, has been granted permission to stay in Russia for three more years, his lawyer said Thursday, Aug. 7, 2014. Snowden last year was granted temporary asylum of one year in Russia, but that ran out on Aug. 1. (AP Photo/The Guardian, Glenn Greenwald and Laura Poitras, File)