04/04/13 - Thursday's Topical Currents begins with social psychologist Sam Sommers. He’s written SITUATIONS MATTER: Understanding How Context Transforms Your World. Context affects our behavior in inexplicable ways: peaceful persons joining a riot . . . a sports fan who behaves like a lout . . . and reasonable humans embracing an “us versus them” mentality. Also, Linda Gassenheimer’s Food & Dining with wine columnist Fred Tasker. Topical Currents . . . Thursday at 1pm on WLRN-HD1, rebroadcast at 7pm on WLRN-HD2 and audio on-demand after the live show.