[angst_ridden]

Remember when scanners would allow you to scan banknotes, even those with a Eurion code?

I suspect we'll be seeing more of this kind of thing in digital stand-alone cameras. GPS-enabled? You just lost the ability to photograph demonstrations. Trademarked logos i the background? Maybe the shutter won't click.

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Scanners with banknotes remind me of my kid's LeapFrog book. It's basically a book and a pen which can read whatever you tap against. It has an optical sensor at the tip of the pen and the print just has a bunch of microscopic dots barely visible to the naked eye. https://en.wikipedia.org/wiki/LeapFrog_Tag