Gun Control & RKBA

And then there are specific technical limitations. Smart guns rely on batteries to power their various safety systems. Should that battery die, the gun could fail to fire. In fact, most models designed for civilian use are designed to fail if the battery dies. It's been suggested that smart guns designed for law enforcement should automatically disable the safety if the battery dies. There are similar issues with biometric scanners, which have serious trouble reading fingerprints if your hands are wet (with panicked sweat as you grapple with an armed attacker, for instance). Many of these systems claim they can read a fingerprint or other biometric and properly unlock the firearm 99.9 percent of the time -- but when it comes to matters of life and death, even 0.1 percent chance of failure is considered too high. And then there's always the worry that these weapons could be hacked or jammed remotely. Which is terrifying.