The By Itself Tree

Article in Scientific American - Doubt is Their Product. How Corporations use their own studies to cast doubt on scientific studies done on the dangers of chemicals they produce and use. The Joker knowingly sold poison substances disguised as cosmetics to the people of Gotham City, and it's pretty much agreed he was a pretty evil guy. But if he was corporate-evil, he would've gone a step further and had scientists convince the people that Batman couldn't be trusted in his declaration that the products were the cause of all those deaths.