Supermarkets are introducing a new technology called an RFID tag (radio frequency ID tag), which are smart labels that consist of a tiny chip surrounded by a coiled antenna. The RFID will be the replacement of the barcode we are all familiar with, however While barcodes need to be manually scanned, the RFID simply broadcasts its data to electronic readers.
This has some benefits for both companies and the consumer, but many people are worried about the use of the data by big brother.
People are concerned that these labels may be used not to keep track of the produce, but of the person who bought the product, for example you may discard some rubbish in a bin which later becomes a crime scene thus linking you to the scene of that crime. You might purchase a private or sensitive product which could be tracked and linked to you personally and once the price of the technology drops you start to ask yourself who has the ability to read these chips and what will they do with the information gathered?
One solution being floated is the idea of killing the code on the chip as customers leave the shop, the main problem here being how do you know when the signal is dead?
Whatever happens it's looking like your shopping trips will never be the same again.