The award, which comes with $10,000, acknowledges the work of the US team - led by Guardian defence and security correspondent Ewen MacAskill and freelancers Glenn Greenwald and Laura Poitras, with assistance from James Ball and Spencer Ackerman - in being the first to report the National Security Agency was collecting millions of U.S. citizens' phone records, carefully vetting vast amounts of information for journalism, and conducting the first exclusive video interview with Edward Snowden.
Judges in the award said: "The Guardian US was the go-to media for one of 2013's biggest news stories, prompting public discussion of NSA policies."
