Camouflaged in a forest of pine trees, inside a large complex of underground bombproof bunkers, a workforce of 560 white-collar Germans and 3,000 slave laborers had been mass-producing, since 1942, liquid tabun—a deadly nerve agent the very existence of which was unknown to the outside world. Tabun was one of Hitler’s most jealously guarded secrets, a true wonder weapon of the most diabolical kind. Similar to a pesticide, the organophosphate tabun was one of the most deadly substances in the world.
