Alien Ant Farm.

"I am convinced that these objects do exist and that they are not manufactured by any nation on earth…. I think that we must resist the tendency to assume that they all come from the same planet, or that they are actuated by similar motives. It might be that the visitors from one planet wished to help us in our evolution from the basis of a higher level to which they had attained. Another planet might send an expedition to ascertain what have been those terrible explosions which they have observed, and to prevent us from discommoding other people besides ourselves by the new toys with which we are so light-heartedly playing. Other visitors might have come bent solely on scientific discovery and might regard us with the dispassionate aloofness which we might regard insects found beneath an upturned stone."

-- British Air Chief Marshal Lord Dowding, 1954