NSA speaks out on Snowden, spying --- The NSA gives unprecedented access to the agency's HQ and, for the first time, explains what it does and what it says it doesn't do: spy on Americans -- The NSA gives unprecedented access to the agency's HQ and, for the first time, explains what it does and what it says it doesn't do: spy on Americans -- The following is a script from "Inside the NSA" which aired on Dec. 15, 2013. John Miller is the correspondent. Ira Rosen and Gabrielle Schonder, producers. --- Gen. Keith Alexander: The fact is, we're not collecting everybody's email, we're not collecting everybody's phone things, we're not listening to that. Our job is foreign intelligence and we're very good at that. - More, JOHN MILLER, CBS - at: http://www.cbsnews.com/news/nsa-speaks-out-on-snowden-spying/