Terry Gross

Bishop Leonard Blair talks about his Vatican-ordered assessment of the Leadership Conference of Women Religious, an organization that represents 80 percent of Catholic sisters in America. He says the LCWR is promoting a "new kind of theology that is not in accordance with the faith of the church."

In The Twilight War, historian David Crist outlines the secret history of America's 30-year conflict with Iran. based on interview with hundreds of officials as well as classified military archives, the book details how the covert war has repeatedly threatened tot bring the two nations into open warfare.

In The Violinist's Thumb, writer Sam Kean goes inside our genetic code, looking at the stories written by the fundamental building blocks within us. The book explains things like why some people can't handle drinking coffee and why some human babies are born with tails.