** FILE ** This Sunday, June 9, 2013, file photo provided by The Guardian Newspaper in London shows Edward Snowden, in Hong Kong. Snowden has left Moscow's Sheremetyevo airport and entered Russia his lawyer said on Thursday Aug. 1, 2013. (AP Photo/The Guardian, Glenn Greenwald and Laura Poitras, File)

** FILE ** This Sunday, June 9, 2013, file photo provided by The Guardian Newspaper in London shows Edward Snowden, in Hong Kong. Snowden has left Moscow's Sheremetyevo airport and entered Russia his lawyer said on Thursday Aug. 1, 2013. (AP Photo/The Guardian, Glenn Greenwald and Laura Poitras, File)