Dr. Andrea Letamendi, a clinical psychologist and comic-book extraordinaire, draws the connections between what lies behind the masks of superheroes and our own behaviors. Anika Price and Liz Hanks from the English Skills Learning Center discuss the importance of building bridges through language for refugees and immigrants. Lisa Smartt, author of "Words at the Threshold," talks about final words. Daniel Bender covers how zoos have shaped our global relationships.