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Two key memos outlining the Justice Department鈥檚 views about when Americans can be surreptitiously tracked with GPS technology are being kept secret by the department despite a Freedom of Information Act lawsuit filed by the ACLU to force their release. The FBI鈥檚 general counsel the existence of the two memos publicly last year, yet the Justice Department is refusing to release them without huge redactions. (You can see the heavily censored versions sent to the ACLU here and here, and our original FOIA request here.)

The Justice Department鈥檚 unfortunate decision leaves Americans with no clear understanding of when we will be subjected to tracking鈥攑ossibly for months at a time鈥攐r whether the government will first get a warrant. This is yet another example of secret surveillance policies鈥攍ike the Justice Department鈥檚 secret opinions about the Patriot Act鈥檚 Section 215鈥攖hat simply should not exist in a democratic society. Privacy law needs to keep up with technology, but how can that happen if the government won鈥檛 even tell us what its policies are?

The power of law enforcement鈥檚 discretion

The Supreme Court has weighed in on location tracking, but the government still has wide latitude to exploit new technologies and legal uncertainty. In February 2012, the Supreme Court issued a landmark decision in U.S. v. Jones, holding that the Fourth Amendment restricts the circumstances in which the government may attach a GPS device to a car and secretly track its movements. Although the Court鈥檚 decision in Jones makes clear that the government鈥檚 attachment and use of a GPS tracker on a car constitutes a search under the Fourth Amendment, it does not say whether that search requires a warrant from a judge鈥攁 crucial protection because it forces agents to justify their actions to a neutral outsider. Furthermore, the court鈥檚 opinion does not address other methods of location tracking, such as cell phone tracking, drones, or license plate readers.

Courts are often slow to extend constitutional protections to new technologies. The telephone was invented in the 1870s, but not until 1967 did the Supreme Court hold that the government needs a warrant to wiretap a telephone conversation.

While we wait for courts to weigh in, how much privacy do Americans have in their movements? Exactly as much as law enforcement agents believe they must give us.

The memos

That is why the two memos the ACLU seeks are so important. According to FBI General Counsel Andrew Weissmann, the government has prepared two memos that outline the Justice Department鈥檚 conclusions regarding its obligations under Jones, and how they apply to a variety of location tracking methods and technologies. (Although we thought the memos had been authored by the FBI, the government鈥檚 has now clarified that they originate with the Justice Department.)

The first memo, dated February 2012, is titled 鈥淕uidance Regarding the Application of United States v. Jones to GPS Tracking Devices.鈥� As Weissmann told a public audience last spring:

So the issues are鈥�is [Jones] going to apply to boats? Is it going to apply to airplanes? Is it going to apply at the border? What鈥檚 it mean for the consent that鈥檚 given by an owner? What鈥檚 it mean for the consent if it鈥檚 given by the possessor?

Weissmann鈥檚 remarks () raise the possibility that the government believes that the type of vehicle a person is in could impact his or her privacy rights. They also raise the question of whether the government is attaching GPS devices to people鈥檚 cars at the international border under more permissive rules.

The second memo, dated July 2012, is titled 鈥淕uidance Regarding the Application of United States v. Jones to Additional Investigative Techniques.鈥� Weissmann explained:

[The] second memoranda [sic] is going to be about guidance about what this means for other types of techniques, beyond GPS, because there鈥檚 no reason to think that this is going to just end with GPS and some of that is going to be very much a judgment call.

While Weissmann did not elaborate on which investigative techniques he had in mind, the obvious one is tracking the location of cell phones. As a recent set of ACLU public records requests demonstrated, cell phone tracking is commonly used by federal, state, and local law enforcement agencies throughout the nation. According to numbers released to Congress last year, the big wireless carriers collectively receive 1.5 million requests from law enforcement each year, many of which are for location tracking.

What about our Fourth Amendment rights?

Americans have a strong interest in disclosure of the Justice Department memos. The Fourth Amendment protects Americans鈥� reasonable expectations of privacy by limiting the circumstances in which law enforcement agents may conduct searches鈥攂ut today only the executive branch knows what it believes those limits to be. There are at least two problems with this.

First, given the extreme nature of the government鈥檚 arguments in Jones鈥攖hat the Fourth Amendment places no restrictions whatsoever on its ability to track Americans鈥� movements in public for days, weeks, or months at a time鈥攖here is good reason to fear that the government鈥檚 interpretation of its own police powers stretches the court鈥檚 opinion to its breaking point. For example, five Justices expressed the view that long-term location tracking violates Americans鈥� reasonable expectation of privacy; if the government is persisting in the warrantless GPS tracking of cell phones, then that raises serious questions about whether it is complying with its obligations under the Fourth Amendment. The public has the right to know this as an oversight matter.
Second, the lack of information frustrates the democratic policymaking process around these new technologies. For example, those who object to the Justice Department鈥檚 self-imposed limitations should have the opportunity to lobby Congress for stricter limits. At the same time, those who feel the government鈥檚 police powers are paramount might wish to argue publicly that the government is unnecessarily hamstringing itself by taking too broad a view of the protections afforded by Jones. The public and its representatives in Congress have an important policymaking role to play when it comes to surveillance, but keeping the government鈥檚 policies secret prevents it from playing that role.

Next steps

The ACLU is continuing to fight for release of the memos, and we will ask the court to order the Justice Department to release them because they are being improperly withheld. The purpose of FOIA is to make sure the government doesn鈥檛 operate under secret law鈥攁nd right now that鈥檚 exactly what these memos are.