A 'safe' handgun is a relative term, but Colorado-based Biofire Technologies is taking a high-tech crack at the idea with its Biofire Smart Gun, which uses an electronic identification and firing ...

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Why it matters: A firearms startup released its take on biometric-based weapon safety, the Biofire Smart Gun. The weapon uses pre-programmed biometric data to recognize users, ensuring only those ...

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. Limited time: Save 25% on NBC News subscription Get exclusive reporting ...