60 Minutes S46 E12 Inside the NSA; The Copts

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 turmoil in Egypt has led to one of the worst persecutions of the country's Coptic Christians in the nearly 2,000-year history of the sect. Bob Simon reports from Egypt.