NSA's Auroragold Mining Operation

The United States National Security Agency, which is known for monitoring landline, Web and cellphone communications worldwide, reportedly also targets wireless carriers. Documents released by whistle-blower Edward Snowden show the NSA has monitored more than 1,200 email accounts associated with major cellphone network operators worldwide since 2010, in a covert operation named "Auroragold." Those intercepted communications help the NSA hack into phone networks.