Imagine a future in which your every belonging is marked with a unique number identifiable with the swipe of a scanner, where the location of your car is always pinpoint-able and where signal-emitting microchips storing personal information are implanted beneath your skin or embedded in your inner organs.
This is the possible future of radio frequency identification (RFID), a technology whose application has so far been limited largely to supply-chain management (enabling companies, for example, to keep track of the quantity of a given product they have in stock) but is now being experimented with for passport tracking, among other things. RFID is set to be applied in a whole range of consumer settings. Already being tested in products as innocuous as shampoo, lip balm, razor blades, clothing and cream cheese, RFID-enabled items are promoted by retailers and marketers as the next revolution in customer convenience. Consumer advocates say this is paving the way for a nightmarish future where personal privacy is a quaint throwback.
How RFID works
There are two types of RFID tags: active and passive. When most people talk about RFID, they talk about passive...