Now you can get tiny RFID chips that you can sprinkle just about anywhere. They can be embedded on currency or maybe even digested.
Implications - With measurements of 0.05mm x 0.05mm, the Hitachi RDID chips can be placed on any object. With the ability to store 38-digit ID numbers, these RFID chips will prove to be very useful in the near future as Hitachi is looking to market them in a couple of years. It would really be a crazy world when everything you own has an RFID chip embedded in it. You will always be able to identify all of your belongings if these chips can really be easily embedded into most products.