Today the Supreme Court unanimously held in U.S. v. Jones that the warrantless use of a GPS tracking device by the police violated the Fourth Amendment. The Court said that a warrant is required "[w]here, as here, the government obtains information by physically intruding on a constitutionally protected area," like a car. Concurring opinions by Justices Sotomayor and Alito urged the court to focus on the reasonableness of the suspect's expectation of privacy because physical intrusion is unnecessary to surveillance in the digital age. EPIC, joined by 30 legal and technical experts,filed a "friend of the court" brief. EPIC warned that, "it is critical that police access to GPS tracking be subject to a warrant requirement." For more information, see EPIC: US v. Jones, and EPIC: Location Privacy.