
Cruelty, violence, badness... This episode of Radiolab, we wrestle with the dark side of human nature, and ask whether it's something we can ever really understand, or fully escape. We encounter a man who scrambles our notions of good and evil, turn to one of the most famous (and misunderstood) psychology experiments ever, talk to a man who chased one of the most prolific serial killers in U.S. history, then got a chance to ask him the question that had haunted him for years: why?
You can explore one calligrapher's modern take on Korean handwriting, or see two shows that require a little help from the audience.
Students in a Virginia school system are now eating hamburgers with additives in them, after officials heeded their complaints about the appearance and taste of all-beef burgers it had been serving. The burgers that are now being served include a reported 26 ingredients.
Hundreds of thousands of Defense Department civilian employees will go back to work on Monday, but many government operations remain suspended.

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