“Design challenges are common in Silicon Valley. Tackling heated political issues is not.

Some recipients of a high-profile contest for “smart gun” designs are refusing to allow themselves to be announced publicly, The Verge has learned, for fear of a backlash from gun rights activists.

A smart gun is a computer-enhanced weapon that authenticates users before allowing them to shoot. Smart guns may rely on biometric data such as a fingerprint, voice print, or the unique way the user grips the gun. They can also require a password or the proximity of another device, such as a wristband.”

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