Modern technology is being employed to solve an age-old problem - how to protect your dead relatives.
Where once bodyguards were employed to, quite literally, stop the dead from being stolen from their graves, in South Africa a company is using SMS to alert families to any attempt to remove marble and granite headstones from graves - a problem that is reportedly rife in the city of Johannesburg.
If a headstone is moved, an embedded microchip sounds alarms in the cemetery, and alerts relatives via SMS.