Natasha Trethewey reads Photography, October 1911.
Olivia Gentile is the author of "Life List: A Woman's Quest for the World's Most Amazing Birds." Gentile tells Anne Strainchamps that her book is a biography of Phoebe Snetsinger who saw some 8400 species of birds while fending off a cancer diagnosis.
Paul Hegarty is a lecturer in Philosophy and Visual Culture at University College Cork in Ireland. He's also really into Noise/Music and is the author of "Noise/Music: A History."
Jonathan Harris created the website wefeelfine.org. He tells Steve Paulson how it works, and we hear a montage of postings from the site.
MD and best-selling novelist Michael Crichton talks with Jim Fleming about the ethical problems he envisions with permitting patents on human DNA.
Kieran Mulvany is the co-creator of a humorous website dedicated to Mohammed Saeed al-Sahaf, the outrageous Iraqi Information Minister. He says that troops in the desert and war planners at the Pentagon love the site.
Nick Flynn is the author of a memoir of his complex relationship with his father, who showed up as a client at the homeless shelter where Nick was working.
In her latest book, "This Changes Everything," journalist Naomi Klein takes a critical view of our current approaches to climate change. She sees the solution resting in the hands of an emerging global movement.