“Yet what's missing from Cullen's explanation is a context for Harris' rage attack on Columbine High School. Even Hitler is given a context by serious historians- the humiliation of the Treaty of Versailles and the failure of Weimar Germany- whereas rampage murderers, like slaves once before them, are portrayed as having killed without reason. Their murder sprees were and are explained as symptoms of the perpetrators' innate evil, or of foreign forces, rather than as reactions to unbearable circumstances.”