Mysterious swarms of giant drones have started to appear in the Colorado and Nebraska night sky, and nobody knows where they're coming from

https://www.businessinsider.com/giant-drone-swarm-mystery-in-colorado-nebraska-skies-2019-12?fbclid=IwAR3fi62M5Ad1N-5bLHAkSHjSvcS9Rbc1UIO48hFdWpMQUgxdZL56IJXEzcQ