The dangers were known at the time. The League of Nations had treaty in the 1920s to ban lead paint, knowledge of the dangers of course proceeded it by a lot. T

The dangers were known at the time. The League of Nations had treaty in the 1920s to ban lead paint, knowledge of the dangers of course proceeded it by a lot. The same with leaded gas. The millions of lives affected and $trillions in damages were completely avoidable except for greed.