GPS

Tiny Human-Borne Monitoring Device Sparks Privacy Fears
CNN, Dec 20, 1999

A Palm Beach, Florida-based telecommunications company has developed a miniature digital monitoring device that can be implanted in people. It is intended to assist in locating missing children or to monitor the heart rate of at-risk patients. But electronic freedom activists are concerned about exploitation of the device, which would use global positioning system (GPS) technology to track implantees.