Washington PostPolitical scientist Erica Chenoweth used to believe, as many do, that violence is the most reliable way to get rid of a dictator. History is filled, after all, with coups, rebellions and civil wars. She didn’t take public protests…

This article on the psychology of hate in Salon illustrates the power of identification: Interviews with U.S. soldiers in World War II found that only 15 to 20 percent were able to discharge their weapons at the enemy in close…