Night Waves

Isabel Hilton talks to Samantha Power, Pulitzer prize-winning journalist, writer and human rights professor, who is now a senior adviser to US presidential hopeful Barack Obama. Artist Grayson Perry and religious philosopher Philip Blond view a major exhibition devoted to German Renaissance artist Cranach the Elder. And there's a review of the playwriting debut of Dorota Maslowska, who has already won the highest Polish literary award with her second novel.