darthrevan comments on The full documentary aired by BBC after getting banned in India. "India's Daughter": That's the thing with "evil". People try to make it into some kind of magical substance that only certain people have. It allows them to think "Oh, I would never do things like that. I'm not capable of it. I'm a good person. Only evil people do things like that, people who have evil inside them."
That is not what evil is. The root of evil is becoming so locked into your own personal beliefs about reality that you start seeing it as reality. You start thinking you have what's Absolutely Right and Absolutely True, so you then feel justified in harming or punishing other beings for being "wrong".
Watch the movie Downfall. It's about Hitler's last days in a bunker in Berlin. There was such discomfort in Germany about that movie, for many understandable and valid reasons, but one of the most interesting reasons was because no one wanted to admit that Hitler was actually a human being.