David Zaring of the Wharton School at the University of Pennsylvania discusses Import Safety: Regulatory Governance in the Global Economy. What can governments, businesses, and consumers do to eliminate dangerous products from the world marketplace?

David Suisman, historian and co-editor of Sound in the Age of Mechanical Reproduction, discusses the role of sound in the history of the twentieth century from early bootleg records to Tokyo Rose to CB radio.

Scott Gabriel Knowles, historian and editor of Imagining Philadelphia: Edmund Bacon and the Future of the City, discusses the legacy of the famous urban planner

Historian Lisa Rosner dispells myths surrounding the Burke and Hare murder case and their client, Dr. Robert Knox. Rosner explains burking, and shared details about the victims of the nineteenth-century serial killers.

Historian Steven Conn discusses how museums have changed over the past century and the role they play in contemporary American life.

International relations scholar Mahmood Monshipouri talks about identity politics in the Muslim world.

Joan Johnson-Freese, Professor and Chair of the Department of National Security Studies at the Naval War College, talks about U. S. military interests in space.

Nancy Bentley talks about the interaction between literary culture and nascent mass culture at the turn of the twenthieth century.

Elise Lemire talks about the history of slavery in and around Concord, including Walden Pond, and the lives of African Americans in the area before Thoreau.

Historian Steven P. Miller discusses the political life of the internationally renowned evangelist Billy Graham.