​​CNN Investigates: How cartels are using drones as their eyes on the US border | CNN

A CNN visual analysis of hundreds of videos, review of state detection data, and a trip to the US-Mexico border reveals how cartels and criminal groups are using drones for their operations

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CNN通过对数百个视频的视觉分析、对国家检测数据的审查以及对美墨边境的实地考察，揭示了贩毒集团和犯罪团伙如何利用无人机进行行动。

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