Do good fences really make good neighbors? Robert Frost’s “Mending Wall” asks surprising questions about the role of walls in civil society. Host Elisa New gathers Ambassador Caroline Kennedy, author Julia Alvarez, political commentator David Gergen, Frost biographer and poet Jay Parini, poet Rhina Espaillat, and former U.S. Poet Laureate Tracy K. Smith to delve into this classic poem.