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In this episode of Frost over the World:

The celebrations marking Barack Obama's first year in office were ruined by a shock defeat for his Democratic party in a senate race in Massachussets. Sir David is joined by the Baptist minister and civil rights activist, Rev. Al Sharpton, who talks about the US president's first year in office and the response to the recent earthquake in Haiti.

Dennis Kuchinich is a Democrat member of the US House of Representatives. Colleen Graffy was formerly the deputy US assistant secretary of state for public diplomacy. They discuss Obama's first year in office and the healthcare bill.

The Indian-born author, Amartya Sen is one of the most influential public thinkers of our time. In 1998 he was awarded the Nobel Prize for his work on welfare economics. The professor of economics and philosophy joins Sir David to discuss his new book, The Idea of Justice.

Sir David continues last week's interview with Quentin Tarantino, the Oscar-winning director of films such as Pulp Fiction, Reservoir Dogs and Inglourious Basterds. Sir David began by asking Tarantino if he was really going to give up making movies, as he had once said, at the age of 60. 

Five years on from the Orange Revolution, Viktor Yushchenko, the Ukrainian president, has been voted out of office. The new president will be decided in a runoff between Prime Minister Yulia Tymoshenko and Viktor Yanakovych, scheduled for February 7. Ukranian author Anna Shevenchenko joins Sir David to talk about who might win and why the Orange Revolution has turned so sour.

For six months Barbara Cherish's father, Arthur Liebehenschel, was a commandant of the world's most notorious concentration camp, Auschwitz. Adopted after the Second World War, Barbara started a new life in the US. She talks to Sir David about her new book, The Auschwitz Kommandant: A Daughter's Search for the Father She Never Knew.

This episode of Frost Over the World aired from Friday, January 22, 2010.