Ex-CIA employee, Edward Snowden, working as a contractor at the U.S. National Security Agency says he leaked details of a top secret U.S. surveillance program, Prism, acting out of conscience to protect "basic liberties for people around the world.”

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http://www.ibtimes.co.uk/articles/476605/20130610/prism-nsa-edward-snowden-whistleblower-extradition-hongkong.htm

Soure: The Guadian, Gleen Greenwald & Laura Poitras