Inadequate sanitation kills more people in developing nations than AIDS, tuberculosis or malaria.
Author Charles E. Cobb Jr. talks about the key sites of the Civil Rights Movement.
The U.S. national debt is now well above 9 trillion dollars -- Andrew Yarrow thinks this is not just bad economic policy, but also a moral issue.
Journalist David Bacon explains how globalization and legislation creates the need for people to migrate and criminalizes immigrant workers.
Ron Howard's latest film chronicles the interviews between British tv host David Frost and President Richard Nixon.
The Oscar-winning filmmaker talks to Bob about his new documentary on abuse at the Abu Ghraib prison in Iraq.
"Newsweek" columnist Ellis Cose documents how Rwandan survivors have dedicated their lives to helping themselves and their nation.
Interviews with 'NY Times' correspondent Tim Weiner, filmmaker George Romero, and Lester Brown from the Earth Policy Institute.
The late Carl Sagan's legacy is continued by way of his son's new book about cutting-edge technologies and where science fiction has become reality.
Adrien Brody and Jeffrey Wright talk about their new film, "Cadillac Records," about Chess Records and its recording artists in the 1940s.