Hitler's Youth

Marlowe is surprised in The Heart of Darkness by how normal the savages look. How unstrange they appear. Isn't evil supposed to look and seem different? The Devil has red horns and a pointy tail- so why can't it be that easy to spot evil in everyday life. I think the tragedy of Hitler's Youth was that the children were not able to recognize the wickedness of what they were doing, saying, and whom they were praising because they knew no better. Satan in Paradise Lost ponders whether it can " do [Adam and Eve] onely stand/ By ignorance, is that the happie state”(Milton, IV. 518-519). The Hitler Youth live in the happy state of ignorance, not knowing  the evil that surrounds them in around every campfire and in every tune they gleefully chant. It is palpable, but their ideas of good and evil are manipulated and reversed. With so many interpretations of evil, who really is to say what's right and what's wrong?