[Article] Why are drones flying near US airbases in Suffolk and Norfolk?

BBC interviewed locals :

Casseem Campbell, 28, said he had seen objects above his house in Beck Row.

He described seeing a triangle-shaped aerial vehicle, which was "a grey, dark colour", in one of two evening sightings of drones he had made in the past week.

"They were really noisy and had lights. They looked official to be honest.

"If they are a threat, why aren’t they being shot down? Why let them fly over if they’re sinister?"