Firearm barcodes

I just noticed that Smith & Wesson is doing 2D Data Matrix barcodes on some of their pistols. As a geek, I find this interesting for a few reasons. First, basic inventory tracking at the factory and second, to help reduce the ability to fake modify gun serial numbers. As with most gun issues, this will have zero impact on criminals. If they want to change a serial number, they’ll spend the time and money to do it – or, they just don’t care and they’ll use a …