During the genocide in Rwanda, about 800,000 to 1,000,000 people were killed during 100 days by at least 120,000 perpetrators. From a social psychological point of view, it has been described how a process changes ordinary people into those who start committing evil acts. There is a general choice for all of us between concern and cruelty. But there are also more or less hidden factors predisposing for one of the choices. What makes us resistant and what turns us into passive bystanders or perpetrators? Social psychologists distinguish between constructive or blind patriots with more or less autonomous selves. Our oscillations between depressive and paranoid positions determine the establishment of open and closed minds.