This article: http://query.nytimes.com/gst/abstract.html?res=9E07E2D7153DEF34BC4D51DFB7678382679EDE&legacy=true, straight from The New York Times, is entitled; “A STERILITY DRUG IN FOOD IS HINTED; Biologist Stresses Need to Curb Population Growth.”
Mike Adams discusses this 1969 article, arguing that an agenda of population regulation is well underway, with vaccines, Big Pharma, etc., etc.: http://collapse.news/2017-09-14-new-york-times-spike-the-food-supply-with-sterilization-chemicals-to-cause-global-infertility-and-depopulation.html
The problem here is that it is highly unlikely that a deliberate conspiracy is at work, beyond the normal conspiracies, such as the great Given: destroy the White race. With the explosion of population numbers in Africa, it is unlikely that there is any globalist plan to eliminate Africans. All the evidence points towards the elimination of the White race. And, no drug in food is even needed. It is easy enough to do things politically, allowing Whites to simply fall on their own swords of political correctness.