NSA surveillance program reaches ‘into the past’ to retrieve, replay phone calls – The Washington Post

http://m.washingtonpost.com/world/national-security/nsa-surveillance-program-reaches-into-the-past-to-retrieve-replay-phone-calls/2014/03/18/226d2646-ade9-11e3-a49e-76adc9210f19_story.html?wpisrc=al_national