"Technology ethicist Patrick Lin, who has briefed the CIA on the risks of deploying weaponized robots, is also concerned that while lethal robots decrease jeopardy for police officers, it means they may become a too-frequent fallback. “It’s a psychological and economic truth that when costs go down — such as risk of injury to yourself from a certain activity — then demand or engagement in that activity goes up, everything else being equal. Robots can save police lives, and that’s a good thing, but we also need to be careful it doesn’t make a police force more violent. That’s a tricky balance to strike,” Lin told me in an email."
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