For all the amazement that swarms of consumer-grade drones provoke—flying in choreographed clusters to form logos, pictures, and even QR codes in the sky—they're also a subject of some strategic concern among national security experts. Drone swarms, one analyst says, are the new WMD (weapon of mass destruction); “slaughterbots” are the new nightmare technology, says another; one prominent media account describes “sin-ister” flocks of “really creepy” drones buzzing residents in rural areas and raising fears of mass surveillance, or worse.

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尽管成群结队的消费级无人机令人惊叹——它们以编排的集群飞行以在天空中形成徽标、图片甚至二维码——但它们也是国家安全专家的一些战略关注的主题。一位分析家说，无人机群是新的 WMD（大规模杀伤性武器）；另一位说，“屠宰机器人”是新的噩梦技术；一个著名的媒体报道描述了一群“非常令人毛骨悚然”的无人机在农村地区嗡嗡作响，引发了对大规模监视或更糟的恐惧。