Original broadcast date: February 6, 2016. Sinful behavior is human, and nearly impossible to avoid. In this hour, TED speakers talk about the guilty pleasure of behaving badly and the challenge of confronting sin — and avoiding it. Guests include psychologist Christopher Ryan, former Oklahoma City mayor Mick Cornett, activist Dave Meslin, epidemiologist Gary Slutkin, entrepreneur Nick Hanauer, book editor Parul Seghal, and record-holding Jeopardy champion Ken Jennings.