In ‘The Snowden Files,’ revealing the man who revealed NSA secrets

Watch Video | Listen to the Audio JUDY WOODRUFF: Finally tonight: He’s a wanted man in the U.S., but this week, National Security Agency leaker Edward Snowden spoke, via video from Russia, to the annual gathering called South By Southwest. He argued to the crowd gathered in Austin, Texas, that the tech industry needs to do more to protect the privacy of Americans in the digital age. RELATED