A look at the devastating impact of gun violence in Baltimore, where a program called ROKA is working to change minds and save lives. Meanwhile, researchers are studying the animal kingdom to unlock secrets to a longer, healthier life. In other news, actor Woody Harrelson discusses his latest film, and a team explores the alarming state of the Great Salt Lake, which is dying due to climate change and water diversion. Finally, writer-director Sarah Polley talks about her Oscar-nominated film, Women Talking. [... more]