How has surveillance impacted cyber security agenda?

Aired: 12/26/2013 | 0:13:20 | Clip
To review what we've learned about the National Security Agency's spying practices -- and the ramifications of those revelations -- since leaks began in the summer, Judy Woodruff consults James Bamford, author of "The Shadow Factory," retired Gen. Michael Hayden, former director of the NSA, and Dmitri Alperovitch of CrowdStrike.