... GPSs to provide drivers with directions or other information, automatically call for help if the airbag deploys, dispatch roadside assistance, unlock the driver's side door if keys are locked in the car, and track the vehicle if it is stolen. For cars not equipped with a GPS, drivers can mount or place one in the glove compartment. Hikers and remote campers also carry GPS receivers in case they need emergency help or directions. A new use of GPS places the device on a computer chip. The chip, called Digital Angel(tm), is worn as a bracelet or chain or woven into fabric and has as antenna that communicates with a GPS satellite (Dugan and Rosen 42-50). The chip measures and sends biological information to the GPS satellite. If information relayed indicates a person needs medical attention, dispatchers can send emergency medical help immediately. Other possible uses of Digital Angel(tm) include a ...

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