" It is of more than historical interest to reflect that Henry Ford modeled his assembly line car production after visiting a Chicago slaughterhouse in the early 1900s. He watched the suspended animals, legs shackled and heads downward, on a moving conveyor as they traveled from worker to worker, each of whom performed a step in the slaughtering process. Ford immediately saw that it was a perfect model for the automobile industry, creating an assembly method of building cars.

More than efficient, the slaughtering assembly line offered workers a newly found detachment in the whole messy business of killing animals. Animals were reduced to factory products and the emotionally deadened workers could see themselves as line workers rather than animal killers. Later, the Nazis used the same slaughterhouse model for their mass murders in the concentration camps. The factory-style assembly line became a way for Nazi soldiers to detach from the killing--seeing the victims as "animals," and themselves as workers. Henry Ford, a rampant anti-Semite, not only developed the assembly line method later used in the Holocaust, he openly admired the Nazis' efficiency. Hitler returned the admiration. The German leader considered "Heinrich Ford" a comrade-in-arms and kept a life-sized portrait of the automobile mogul in his office at the Nazi Party headquarters. "

― Jane Goodall