At Point of Inquiry, Barbara Oakley brings out a thesis of evil genes. She states that Zimbardo and Milgram’s experiments were flawed and suggests that we aren’t evil (or good) because of our environmental upbringing; rather, we are born evil or good. So I guess people like Hitler and Stalin were evil because they were geneticially predisposed to be evil. I thought it was a fascinating listen. The end also talks about religion, but it didn’t really grab me because I already agreed with Oakley on her view. Check it out. You can go to the site, or listen directly here.