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Technology from startup Yardarm can tell 911 emergency responders if a police officer's gun has been fired. But Yardarm doesn't call it a "smart gun" -- that would court controversy.
Star investor Ron Conway is among those behind a series of $1 million challenges aimed at using technology to improve gun safety. The key? Find ways to make sure only guns' owners are able to fire them.
The weapons landscape is going through major changes as startups invent precision rifles, high-tech scopes, gun-centric iPhone adapters, and pistols that require fingerprint authorization.