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The man in the video above built a drone with a weapon attached. He says he has fired the paintball drone weapon at real human beings (volunteers, he tells us).
My colleague Jay Stanley wrote about this man and his weaponized drone project, and discusses what this warning means in the context of government drone deployments domestically. We still haven't decided as a nation how we'll handle the privacy and rights challenges posed by these developments. If the video above is any indication of what's to come, we better do that well — and fast.