Speed Limit enforced by aircraft?
Nothing new. 'bears in the air' have been a fact since the late 1960s when police helicopters timed automobile speed by markers on the roadway. If you went between Point A and Point B too quickly, they had you and your tag (via binoculars) dead to rights.
But... I do suppose that drones will eventually be used for this duty in places where traffic conditions are most dangerous or there is a municipality in need of revenue...


and it talks. Gotta love technology. 