"But when it came to trying to understand the actual act of killing, we confess our total failure. We acknowledge from the outset this failure. We have grasped the insidious process by which people were stirred up. We understand how they were manipulated and how they came to accept the demonization and dehumanization of others.  We studied the literature, some of it highly controversial, that attempts to account for collective human breakdowns in which ordinary citizens turn into monsters.  We have arrived at a certain comprehension of the complex series of factors at work.  But we do not pretend for a moment that we have reached any understanding of the act of one neighbour or one Christian or one teacher actually hacking another to death.  Perhaps, some day, answers will emerge.  But for now, we are able to offer little illumination on the first questions that so many people reasonably ask."