Update: Snowden claims to have more in-depth NSA files
Posted on July 15, 2013 at 8:52 AM
Updated Wednesday, Aug 7 at 12:28 PM
(CBS) NSA leaker Edward Snowden has revealed many secret documents, but his main contact in the press says Snowden also has files that show how the National Security Agency actually works.
CBS News' senior correspondent John Miller shares his insight.