My friend Skip wants to go beyond a Single Identification Number (SIN) and barcode everyone on the arm. This will put a dent in identity theft. I argue that it only opens up a market for skin tone self stick bogus barcode labels.
I had a project recently that got me thinking about barcodes. I learned how to manipulate images with PHP. I created my own barcode font and produced CODE 128 barcodes.
When the time comes you can get the graphics from my program and glue it to your arm.