FBI to ACLU: Nope, we won't tell you how, when, or why we track you

http://en.wikipedia.org/wiki/Federal_Bureau_of_Investigation

Back in August 2012, we reported on how the American Civil Liberties Union was compelling the FBI to fully disclose how it interprets the results of the United States v. Jones case—a unanimous Supreme Court decision establishing that law enforcement does not have the authority to put a warrantless GPS tracker on a suspect’s car.

As we reported then, other types of high-tech surveillance and monitoring by law enforcement continue on a nearly daily basis around the country. Cops are using everything from tap and trace, ping data, license plate surveillance, and other techniques as a way to keep tabs on suspects and innocent citizens without going through the threshold of a judicially-reviewed probable-cause-driven warrant.

Now, the ACLU has received a response to its query—with nothing. The FBI sent the ACLU back pages (PDF) upon pages (PDF) that are heavily redacted, providing zero insight into what this policy actually is.