dishonesty-stopping brain scanner

It seems standard practice for many people to mislead others, and that's terrible. I'm tired of dealing with car salesmen, consultants from the disreputable firms, advertising, and politicians.

Let's fix this with science.

I propose the widespread distribution of technology to autonomously monitor how honest other people are being. Create a cheap lie or half-truth detector that can be handed to new acquaintances with the expectation that they will wear this, giving you a constant read-out of their level of deception, because if they don't wear your sensor, they clearly are hiding something.