How scary...an evil drone in the backyard!!! Eveyone should be concerned...
Chill out.
These things are like RC airplanes of the past. The tech is so good now you get some very capable and fun ones for a hundred dollars. They are sold everywhere
The world is not ending
True but you did leave out one small but critical detail. The typical hobby RC planes of the past {I remember seeing them as far back as the early 1960's BTW} did not have the capabilities to take pictures nor record sound and as such threatened no ones privacy. Right?