A years-old bank heist may soon have major privacy implications for every American who owns a cellphone. On Monday, the Supreme Court heard arguments in Chatrie v. United States , a case involving police’s use of controversial “geofence warrants” to find and arrest Okello Chatrie, the suspect of a 2019 bank robbery outside Richmond, Virginia. At stake is how private your location data — and any other information you store with a large tech company — actually is. Chatrie was tracked down via the Location History feature on Google Maps, which can identify a person’s location within three meters and refreshes every two minutes. Police served Google with a warrant asking for data on anyone who had been within 300 meters of the Call Federal Credit Union at the time of the robbery, and made subsequent requests for users’ information until they identified Chatrie as the prime suspect.…