In 2009 AT&T was found to have systems installed by the NSA in their wiring rooms that made a replica of all data coming into those rooms. source: http://www.p

In 2009 AT&T was found to have systems installed by the NSA in their wiring rooms that made a replica of all data coming into those rooms. source: http://www.pbs.org/wgbh/nova/military/spy-factory.html http://www.pbs.org/wgbh/nova/military/spy-factory.html