NSA slides explain the PRISM data-collection program
The Washington Post
June 6, 2013
Introducing the program
A slide briefing analysts at the National Security Agency about the program touts its effectiveness and features the logos of the companies involved.
Monitoring a target's communication
This diagram shows how the bulk of the world’s electronic communications move through companies based in the United States.
Providers and data
The PRISM program collects a wide range of data from the nine companies, although the details vary by provider.
This slide shows when each company joined the program, with Microsoft being the first, on Sept. 11, 2007, and Apple the most recent, in October 2012.