Terry Gross

Dean Hamer is Chief of Gene Structure and Regulation at the National Cancer Institute's Laboratory of Biochemistry. He's the co-author of "Living with Our Genes: Why They Matter More Than You Think" (Doubleday). The book is about Hamer's research looking at how specific genes are linked to our behavior, traits like anxiety, thrill-seeking, and homosexuality. (Interview by Marty Moss-Coane)

Neil Jacobson is Professor of Clinical Psychology at the University of Washington, and a pioneer in the scientific study of marital therapy. He is co-author (w/John Gottman, author of "Why Marriages Succeed or Fail") of "When Men Batter Women: New Insights into Ending Abusive Relationships" (Simon & Schuster). The book is based on their decade of research with 200 couples in which they observed the arguments of severely violent couples. Their research shatters a couple of myths: that women batter too, and that women often provoke men into battering them.

Novelist Denise Giardina has written a historical fiction on the life of Dietrich Bonhoeffer -- a German pastor and theologian who, along with a group of German government and military officials plotted to assassinate Adolf Hitler and topple his regime. Giardina's new book is "Saints and Villains" (Norton). Giardina is a former Episcopal deacon, who renounced her ordination vows for active lay ministry. She's also the author of the books "Storming Heaven" and "The Unquiet Earth." (Interview by Marty Moss-Coane)