http://www.latimes.com/news/local/la...la-home-center

OvoControl P is a birth control pill...the chemical is added to pigeon food which after couple of generations makes pigeon population decrease until they are extinct...because they are unable to reproduce.

Now pigeons are on the line here for the sake of Hollywood stars...but humans are next.

Imagine a government which decides (like China) that its population is well over-limits, design a gene chemical that renders people infirtile...people cannot reproduce. The age of the settling sun comes and cast shadows on a population of elderly men and women who have no future...

Human population no more...and OvoControl P was the start.

The end.