I slagged European History for Dummies a little bit in my last post. In their defense, I offer this quote from the end of a section on the Holocaust.

Don’t forget that thousands of ordinary people were involved. The cattle wagons the prisoners were loaded into had to be booked with the railway companies, firms were contracted to supply the barbed wire or the gas chambers or the ovens. People filled in order forms for gas crystals, or simply delivered the guards’ beer, food, and cigarettes. All these people played their part in helping one of the greatest crimes in history to happen.