Rev. Jesse Jackson Sr. reviews the Voting Rights Act. Erica and Tina Campbell, also known as the Grammy-winning gospel duo Mary Mary, discuss the making of their new CD.

Freakanomics authors Steve Levitt & Stephen Dubner discuss a new way of looking at the modern world. Author Bebe Moore Campbell explains the stigma of mental illness in the African American community.

Dr. Michael Eric Dyson weighs in on Dr. Bill Cosby's controversial comments on parenting. Author Anne Bailey explains the history of the denigration of women.

Celebrated author Terry McMillan discusses her latest literary outing, The Interruption of Everything. British actor and Dark Waters star Tim Roth reflects on the terrorist attacks in London.

Economist and Why Unions Matter author Michael Yates examines the state of labor unions in the U.S. Filmmakers John Singleton and Craig Brewer discuss their new feature, Hustle & Flow - the talk of this year's Sundance Festival.

Everything Bad Is Good For You author Steven Johnson argues that popular culture has made Americans smarter. Wu-Tang Clan's The RZA discusses his role as Artist in Residence at this year's L.A. Film Festival.

Pulitzer Prize-winning historian David McCullough says the U.S. is a work in progress. Writer Joyce Carol Oates wants her work to stand on its own, without gender.

In an exclusive conversation, David Dennis, a civil rights worker in Mississippi during "Freedom Summer," ponders the impact of the Killen trial guilty verdict and his work in education.

Bewitched and Cinderella Man producer Penny Marshall reflects on being in a show biz family and says Hollywood turns out so many remakes because it's afraid of original thought.

Univision's Spanish-language broadcaster Jorge Ramos weighs in on U.S. immigration policy. A pioneer of the independent film movement, director John Sayles explains the difficulty in telling honest stories in Hollywood.

Former Seattle top cop Norm Stamper discusses the problems that afflict American police systems. R&B singer Vivian Green says she doesn't mind telling all in her songs.

Alabama Sen. Jeff Sessions discusses the upcoming confirmation hearings for Supreme Court nominee John Roberts. Oscar-winner Tim Robbins explains his play-turned-TV movie, Embedded - a reaction to the war in Iraq.

Six Feet Under creator Alan Ball gives insider scoop on the show's final season. Jazz vocal improviser RaË™l Midón shares how being blind affects his music and performs "State of Mind," from his debut CD.

Legendary civil rights-era journalist Karl Fleming says he learned "real bravery" from activists in Birmingham, AL. Singer Amerie reflects on her biracial heritage.

Oscar-winning actress Halle Berry discusses her mixed-race upbringing, Emmy nods and future projects. Attorney Jeanne Finberg explains Medicaid and the new prescription drug benefit.

Wisconsin Sen. Russ Feingold debates the merits of staying in Iraq vs. protecting the U.S. from terrorists. Tavis pays a final tribute to John H. Johnson and Peter Jennings.

Pablo Alvarado, of the National Day Laborer Organizing Network, ponders American attitudes toward undocumented workers. Law and Order: SVU star Ice-T weighs in on the debate over rappers becoming actors.

The Council of Foreign Relations Middle East expert Judith Kipper weighs in on Iraq and Gaza. Actor Keith Robinson, star of the FX war drama Over There, reflects on his burgeoning career.

World-renowned neurosurgeon Dr. Ben Carson discusses overcoming a troubled childhood. Pitney Bowes CEO Michael Critelli explains why diversity isn't more popular.

Broadcast journalist and author Linda Ellerbee discusses her experiences traveling around the world. Emmy-nominated Lost star Naveen Andrews ponders race in a multicultural society.

The Discovery Institute's Stephen Meyer debates the argument for teaching evolution in schools. "Funk pioneer" George Clinton says funk is the DNA for hip-hop.

Medical correspondent Dr. Ian Smith explains a new twist on dieting. Michael McKean, star of IFC's animated Hopeless Pictures, discusses his musical work and Grammy win.

Rep. Heather Wilson, the only female vet in Congress, discusses her recent Iraq visit. R&B singer Eric Benet describes how his new music reflects facing and overcoming obstacles.