Is the secret service really spying on people by encouraging printers to spatter coded yellow dots all over their documents? I must say I find it implausible.
For the determinedly paranoid amongst us, today’s invention provides an answer. Rather than scanning every document you print with a blue light (how’s that going to help exactly?) just arrange for your paperwork to contain lots of extra full stops. These would take the place of every space on a page and be printed in a very low-saturation yellow.
Your identity can thus be protected by the old techique of hiding in plain sight.