The Digital Collection System Network (DCSNet) is the Federal Bureau of Investigation (FBI)'s point-and-click surveillance system that can perform instant wiretaps on almost any telecommunications device in the United States.
It allows access to cellphone, landline, SMS communications anywhere in the US from a point-and-click interface. It runs on a fiber-optic backbone that's separate from the internet. It is intended to increase agent productivity through workflow modeling, allowing for the routing of intercepts for translation or analysis with only a few clicks. The DCSNet real-time intelligence data intercept has the capability to record, review and playback intercepted material in real-time.
The DCSNet systems operate on a virtual private network parallel to the public internet, with services provided at least for some time by the Sprint peerless IP network.
Much of the information available on this system has come from the results of Freedom of Information Act (FOIA) requests made by the Electronic Frontier Foundation (EFF).