The U.S. Supreme Court ruled that police needed a warrant before planting a GPS tracking device to an American’s vehicle. The ruling was split 5 to 4, but the court said it’s important to know what the ruling said about a reasonable expectation of privacy. New technology “may provide increased convenience or security at the expense of privacy,” says Justice Sotomayor. The court said there was “no reason for rushing forward” to resolve if other non-classic trespass issues involving electronic surveillance would also be ruled unconstitutional.”]