John Sawers the head of M16 is seen attending an Intelligence and Security Committee hearing at Parliament, in this still image taken from video in London November 7, 2013. Britain's intelligence ... more 
John Sawers the head of M16 is seen attending an Intelligence and Security Committee hearing at Parliament, in this still image taken from video in London November 7, 2013. Britain's intelligence chiefs gave their first ever public testimony on Thursday when they were cross-examined together in parliament about the case of former U.S. spy agency contractor Edward Snowden. REUTERS/UK Parliament via REUTERS TV (BRITAIN - Tags: CRIME LAW POLITICS SOCIETY) FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS less 
1 / 22
Reuters | Photo By REUTERS TV / Reuters
Thu, Nov 7, 2013 11:05 AM EST