Echelon
... Echelon is a system used to intercept e-mails, fax and telephone communications; the NSA and the FBI control it. The US government has been using nuclear submarines to attach monitoring pods to underwater telecommunication cables all over the globe; this allows Echelon to monitor your phone calls, faxes and even more disturbing, your internet actively. Echelon monitors all Internet traffic in real time 24/7 and looks for keywords, using its dictionary, if it finds a match in an e-mail or another file, Echelon will mark it for checking by the intelligence analysts.