For her latest edition of Artsnight, Fleet Street legend Lynn Barber considers the idea of taking risks in art. The Turner Contemporary Gallery in Margate is hosting an exhibition on that very theme, including works by Ai Wei Wei and Yoko Ono. In Margate, Lynn meets Peter Kennard, who has been called Britain's most important political artist. His hard-hitting anti-nuclear campaigning posters from the 1970s capture the terrifying physical risk of war, as well as the personal risk as an artist in challenging the establishment. Also in the exhibition is the doyenne of performance art, Marina Abramovic, who has had a loaded gun held to her head and an arrow to her heart, all in the name of art. In a rare and extended interview, Lynn asks her about an illustrious career which has always encompassed physical and creative risk in pursuit of her art.