Leaded gas. Asbestos insulation. Cigarettes. Fossil fuels. High schools would do well to put on All My Sons every 3 years https://en.wikipedia.org/wiki/All_

Leaded gas. Asbestos insulation. Cigarettes. Fossil fuels. High schools would do well to put on All My Sons every 3 years https://en.wikipedia.org/wiki/All_My_Sons https://en.wikipedia.org/wiki/All_My_Sons "All My Sons is based upon a true story... how in 1941–43 the Wright Aeronautical Corporation based in Ohio had conspired with army inspection officers to approve defective aircraft engines destined for military use"