Terry Gross

Jim Parsons won the 2010 Emmy for Outstanding Lead Actor in a Comedy Series for his portrayal of Sheldon Cooper, the socially awkward theoretical physicist in the venerable CBS nerd-comedy. He joins David Bianculli for a discussion about playing the eccentric prodigy.

How do you talk people out of truly desperate situations? Gary Noesner, who spent 30 years as a hostage negotiator for the FBI, details some of his most noteworthy cases and explains the techniques he used to defuse tense, potentially life-threatening encounters.

A house located on C Street in Washington, D.C., is home to many powerful conservative members of Congress who share both an ideology and an address. Jeff Sharlet details the house's mission in C Street: The Fundamentalist Threat to American Democracy.

Now that President Obama has declared the end of America's combat mission in Iraq, questions remain about the country's stability. New York Times foreign correspondent Anthony Shadid explains what the war means for the future of Iraq and the future of the Middle East.

Writer David Rakoff's glass is never half full. In Half Empty, his latest essay collection, Rakoff explains the powers of pessimistic thought as he analyzes topics such as a pornography trade fair, his neurotic childhood and his recent cancer diagnosis.

The plot shakeups at the beginning of this season's Mad Men have left Jon Hamm's character Don Draper a broken man. Hamm talks about Draper's evolution, details how he auditioned for the role and talks about his newest movie, Ben Affleck's crime thriller The Town.

There are 10 times more microbial cells on and in our bodies than there are human cells. And these bacteria aren't just there for the ride. Dr. Jeffrey Gordon explains how they contribute to the physiology of the human body and why they may hold the key to fighting some diseases.

Many of Spencer's novels feature a turning point -- a dreadful, unplanned act committed by one of the characters. In his latest book, Man in the Woods, a carpenter accidentally kills a man, which leads him to question himself and his relationship with God.

In Making Our Democracy Work: A Judge's View, Supreme Court Justice Stephen Breyer outlines his ideas about the Constitution and about the way the United States legal system works. Breyer explains how the justices debate each case on their docket, why he interprets the Constitution as a living document, and details what he thinks is the worst decision the high court has ever made.

More than 6 million African-Americans moved from the South to cities in the Northeast and Midwest between 1915 and 1970. Pulitzer Prize-winning journalist Isabel Wilkerson documents the resulting demographic and social changes in her history of the Great Migration, The Warmth of Other Suns.