Producer Rick Rubin was a pioneer of hip-hop, and he’s worked with its biggest names. But he also reinvigorated the late careers of legends like Johnny Cash and Neil Diamond. His one rule in the studio: no talking about business. For indie songwriter Joan As Police Woman, the best lyrics are the ones that feel too embarrassing to sing in public. And we’ll discuss controversial new policies at universities that require professors to warn students about books they may find upsetting — like The Great Gatsby.