The company behind America’s first biometric “smart gun” — one that fires only when gripped by authorized users — will face a crucial test in the coming weeks. After decades of failed attempts by ...

This article is part of “Under the Gun,” a series on why the deadliest product on the market is also one of the least regulated. Subscribe to read this story ad-free Get unlimited access to ad-free ...

This archived news story is available only for your personal, non-commercial use. Information in the story may be outdated or superseded by additional information. Reading or replaying the story in ...

Add Popular Science (opens in a new tab) More information Adding us as a Preferred Source in Google by using this link indicates that you would like to see more of our content in Google News results.