Attack of the drones: the mystery of disappearing swarms in the US midwest, Drones (non-military)

When groups of sinister drones began hovering over homes in America’s Midwest, the FBI, US Air Force and 16 police forces set up a task force. But the drones vanished. Did they even exist? Amelia Tait investigates

Mysterious drones fly over Colorado and Nebraska, prompting a Federal Aviation Administration investigation - The Washington Post

General Atomics Archives - The UAV Digest

If you found a military drone, are you obliged to return it or could you modify it for your use? - Quora

Colorado drone mystery sightings finally might be solved, Military

Locust - Wikipedia

The Army is using drone swarms against its soldiers in training

Drone attacks can result in 'blowback' among civilian populations. - The Washington Post

US wants first drones that can kill people truly independently

Drones are a strategic liability for US

Attack of the drones: the mystery of disappearing swarms in the US midwest, Drones (non-military)

Conspiracy theories abound despite officials' denial of drone invasion - ABC News