Snowden Speaks: What Lasting Impact for NSA Leaks? (part 2)
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It's been nearly a year since a 29-year-old US intelligence subcontractor stunned the world with revelations of eavesdropping on a global scale. This week, Edward Snowden spoke to NBC from Moscow, where he has been granted asylum. It's first interview of its kind, in which he outlines his role, his homesickness, and the promise of fresh revelations... What will be the lasting impact of Snowden's revelations? Is he a hero or a traitor?