Pulitzer and Polk Prizes for Snowden, Greenwald and Poitras

    In their first return to the United States since exposing the National Security Agency's mass surveillance operations, journalists Glenn Greenwald and Laura Poitras were honoured in New York City on Friday with the George Polk Award for National Security Reporting.

    Over the past 10 months, Poitras and Greenwald have played key roles in reporting the massive trove of documents leaked by Edward Snowden. They were joined by colleagues Ewe