In Short: Satellites track Mexico kidnap victims with chips

Wealthy Mexicans, terrified of soaring kidnapping rates, are spending thousands of dollars to implant tiny transmitters under their skin so satellites can help find them tied up in a safe house or stuffed in the trunk of a car.
More middle-class people also are also seeking out the tiny chip designed by Xega, a Mexican security firm whose sales jumped 13 percent this year.
The company injects the crystal-encased chip, the size and shape of a grain of rice, into clients' bodies with a syringe. A transmitter then sends signals via satellite to pinpoint the location of a person in distress. Most people get the chips injected into their arms between the skin and muscle where they cannot be seen. Customers who fear they are being kidnapped press a panic button on an external device to alert Xega which then calls the police.