How the NSA's MUSCULAR program collects too much data from Yahoo and Google
This document is an excerpt from Special Source Operations Weekly, an internal National Security Agency publication dated March 14, 2013. It describes a common NSA problem of collecting too much information – and how the agency is attempting to control it.
GRAPHIC: Barton Gellman and Matt DeLong - The Washington Post. Published Oct. 30, 2013.