to this:
#23(2014-03-19 13:47)
In the brilliant work of Strugatsky, "The inhabited island" tells about a world whose inhabitants are constantly exposed to zombie radiation. Several times a day the intensity increases – then the majority falls into patriotic ecstasy, and the smaller, not prone to zombies, experiences physical pain.
The radiation generator was installed by Rudolf Sikorsky, a Earthman, a galactic security worker who decided to make the world more correct.

Not for ignorance and blasphemy of the Strugacki brothers. Psychogeners were invented and applied in Saraksha long before the appearance of the earthly. Read more carefully