Comment by guelo

Photocopiers and printers have included anti-counterfeiting tech for decades, so there is precedent for this kind of thing. And this is addressing a real growing problem:

https://www.cbsnews.com/sanfrancisco/news/santa-rosa-167-gun...

https://da.santaclaracounty.gov/da-task-force-seizes-ghost-g...

https://www.vvng.com/3d-printed-firearm-recovered-after-man-...