Inside the U.S. Government-Bought Tool That Can Track Phones at Abortion Clinics:

The demonstration, performed by a group of privacy advocates that gained access to the tool and leaked videos of it to 404 Media and other journalists, shows in the starkest terms yet how Locate X and other tools based on smartphone location data sold to various U.S. government law enforcement agencies, including state entities, could be used to monitor abortion clinic patients.