Terry Gross

Medical writer Robin Marantz Henig is a frequent contributor to The New York Times Magazine, the Washington Post, Mirabella, and Vogue. Her new book, "A Dancing Matrix" is about the work being done to understand viruses. The field has taken on new urgency since the spread of the AIDS virus. Hening says scientists have realized that emergence of a new virus is not as rare as previously though, and that it's caused mostly by human error rather than genetic mutation.

Journalist Ray Bonner lived in Africa from 1988 until January of this year. He has a new article in "Mother Jones" about why the U.S. sent Marines into Somalia. He questions our role as the world's "missionary." Bonner also reported from Central America. Just recently he was exonerated for reporting on a massacre in El Salvador. Officials denied the event, but archeologists have since uncovered a mass grave.

New York Times journalist Jane Perlez has been covering Africa since 1988 and has been credited with recognizing stories before the rest of the media. She was reporting on the trouble in Somalia, and the threat of famine a year ago, long before it became the focus of world attention.

Film critic Stephen Schiff reviews "Mad Dog & Glory," starring Robert De Niro and Bill Murray.

Sawyer's new television news magazine show, Day One, premieres this Sunday night on ABC. He was recognized for his reporting during the Gulf War, when he split off from the pack and brought in some of the earliest footage of surrendering Iraqi soldiers and the American liberation of Kuwaiti. Sawyer also subs for Ted Koppel on Nightline.

Investigative journalist Tom Powers has written a new book about the German attempt to get an atomic bomb, the threat that terrified American scientists and military during World War II. The book is "Heisenberg's War." At the center of the story is German physicist and Nobel laureate Werner Heisenberg. While other preeminent scientists left Germany with the rise of the Reich, Heinsenberg chose to stay to defend what was left of "good science." The program weapons program failed.

Journalist, professor, and historian Christopher Simpson teaches at American University in Washington, D.C. Last month the U.N. Security Council voted to create a new international tribunal to try those accused of war crimes in the Balkan conflict. Simpson has written a new book about the use of mass murder as an instrument of state power, beginning with World War I, called "The Splendid Blond Beast." Simpson shows how those who commit such crimes are rarely punished, like high-ranking SS killers from World War II.

Journalist Robert Kaplan has been a foreign correspondent for "The Atlantic," and "The New Republic." In the 1980s and early 1990s, he was the first American writer to warn of the coming crisis in the Balkans. His latest book, "Balkan Ghosts: A Journey Through History," is a political travel book about his journeys through southern Austria and Croatia, Old Serbia and Albania, Macedonia, Romania, Bulgaria, and Greece.

A concert and interview with Shirley Horn. Playing with her will be drummer Steve Williams and bassist Charles Ables. Horn recorded with Miles Davis and Quincy Jones in the 1960s, and sang on the movie soundtrack of "For Love of Ivy." After a hiatus in which she stayed home and raised her daughter, she returned to performing and recording in 1988.

Writer and filmmaker Stephen Trombley's latest project is a book and documentary, "The Execution Protocol: Inside America's Capital Punishment Industry." The book has little to do with the morality of taking a life; rather, It's about the practical considerations involved with performing executions.