For today’s show we're re-airing some of our favorite interviews from recent months. First, two former opposition researchers explain how their field has become an integral part of modern political campaigning. Michael Oher, the football player who inspired the book and film The Blind Side, talks about his life and upbringing. The 99th object in BBC’s A History of the World in 100 Objects is an HSBC credit card. Krys Lee tells us about her collection of short stories, called Drifting House. And we’ll look at how the creditors in today’s global economy—namely China and the Middle East—will help shape much of the coming century.