Wired Threat Level contributor Ryan Singel says,
The FBI has quietly built a sophisticated, point-and-click surveillance system that performs instant wiretaps on almost any communications device, according to nearly a thousand pages of restricted documents newly released under the Freedom of Information Act.Link to Singel's extensive report, which features a slideshow of scans from those FOIA'd documents.
The surveillance system, called DCSNet, for Digital Collection System Network, connects FBI wiretapping rooms to switches controlled by traditional land-line operators, internet-telephony providers and cellular companies. It is far more intricately woven into the nation's telecom infrastructure than observers suspected.
DCSNet combines software with nicknames like Red Hook and Digital Storm, telecommunication switches with legislated backdoors and a private, encrypted nationwide backbone tying spying rooms across the nation together.