BD & S .:.

http://www.theverge.com/2014/1/13/5303694/nsa-surveillance-does-little-to-prevent-terrorism-says-think-tank

http://www.theverge.com/2013/10/4/4802512/nsa-failed-to-compromise-tor-network-but-exploited-browser-vulnerabilities

191, 911 & 119

http://www.theverge.com/2013/11/12/5082666/the-edge-of-the-abyss-exposing-the-nsas-all-seeing-machine .:.
http://en.wikisource.org/wiki/United_States_Code/Title_18/Part_I/Chapter_119