LONDON, ENGLAND - DECEMBER 03: Alan Rusbridger, the Editor of The Guardian newspaper, arrives at Portcullis House to face questions from the Home Affairs Committee on December 3, 2013 in London, England. Mr Rusbridger is due to face questions about his newspaper's decision to publish material leaked by former NSA contractor Edward Snowden, which some have claimed to have been a threat to national security. (Photo by Oli Scarff/Getty Images)
