Cyrus Farivar, writing for Ars Technica, features five cases that the U.S. Supreme Court could grant certiorari in and take on privacy and surveillance issues involving the National Security Agency: Klayman v. Obama, First Unitarian Church v. National Security Agency, American Civil Liberties Union (ACLU) v. Clapper, United States v. Moalin, and United States v. Muhtorov. Farivar notes the Supreme Court held in United States v. Jones that law enforcement doesn't have the authority to use GPS tracking without a warrant and held in Riley v. California that law enforcement can't search a person's phone without a warrant, reflecting "an awareness that modern tech has changed reasonable privacy."