The soul-stirring Portuguese music known as Fado. Robert discusses and listens to the art of Fado with Donald Cohen, author of "Fado Portuges." Featuring music by Mariza, Caminé, Amalia Rodrigues and more.

Physician and human rights activist Ashis Brahma of the Phoenix Global Health Foundation talks about practicing medicine in conflict zones and refugee camps.

A theoretical physicist searches for the universal laws of life. Geoffrey West explains some simple mathematical rules that he says may explain everything from the length of our lives to the health of our cities.

Comics artist Art Spiegelman discusses "Breakdowns," the recent book collecting his work from the 1970's, and looks back on his life in cartooning and comics, from skin mags and Garbage Pail Kids to Maus and the New Yorker.

How people cope with calamity. Pulitzer prizewinner Tracy Kidder discusses his new book, "Strength in What Remains," about an African refugee fleeing ethnic violence. And social critic Rebecca Solnit talks about the response of ordinary people to the Loma Prieta earthquake, hurricane Katrina and other natural disasters.

Three people whose faces were altered by illness or injury talk about self-image, the meaning of beauty, and the realities of reconstructive surgery. David Roche is an inspirational speaker and humorist. Gina Butchin works to raise awareness of facial difference. Louise Ashby is an actress and writer. They speak to host Robert Pollie.

Three people whose faces were altered by illness or injury talk about self-image, the meaning of beauty, and the realities of reconstructive surgery. David Roche is an inspirational speaker and humorist. Gina Butchin works to raise awareness of facial difference. Louise Ashby is an actress and writer. They speak to host Robert Pollie.

Art, authenticity, race and identity mix it up in the music of the acclaimed singer-songwriter known as Stew. He discusses his musical "Passing Strange," now out in a screen version from Spike Lee.

Art, authenticity, race and identity mix it up in the music of the acclaimed singer-songwriter known as Stew. He discusses his musical "Passing Strange," now out in a screen version from Spike Lee.

It's alive! Biochemist and astrobiologist David Deamer describes how life may have begun on Earth, perhaps with a little help from outer space.