Professor of Philosophy Rivka Weinberg addresses moral crimes, upstander vs. bystander realities, and the lessons of the Holocaust for the New York Times. 鈥淚t鈥檚 unsettling to accept how many people participated in appalling moral crimes but comforting to realize that we don鈥檛 have to be heroes to avoid genocides,鈥 Weinberg writes. 鈥淲e just have to make sure not to help them along.鈥