Mithu Sen on being a provocateur, GPS Art and Danelle Bergstrom's Swedish journey

Indian conceptual artist Mithu Sen talks about the idea of 'radical hospitality' and how she pokes fun at the art world's hierarchies. Plus,  science reporter Belinda Smith explains why she creates GPS art on the run. And painter Danelle Bergstrom on a journey to Sweden that altered the course of her life and art.