Smoking Paco in Buenos Aires

Paco, a cheap drug made from cocaine paste. The poor kids in the slums of Argentina and across South American are smoking paco, cooked up from coca leaves and gasoline. The Newsreel tells us how scary this drug is: but they say little about the poverty and despair that permeate the slums where paco is a way of life that some are into by the time they are ten years old. Why here? Why places like this? Is it because only the poor use drugs? Or because, superimposed as it is on the implacable landscape of poverty, it is so much more visible?