Jimbo - i suppose i could be mistaken, but i think that the subcutaneous identification implants used in pets are only microchips containing encrypted data, not trancievers. they don't "track" lost pets, but rather if a scanning device is passed over the pet's chip site, it can "read" the data, and therefore find out who the owner is. no "big brother" scenario here. best wishes, hrg [Posted in FML issue 1281]