How relevant is the Nation-State in today's world? Philip Dodd debates the future of the Nation -State with political commentator Will Hutton, New Generation Thinker Adriana Sinclair, Turkish novelist Elif Shafak and historian Quentin Skinner. Susannah Clapp reviews Martin Crimp's new play In The Republic of Happiness. And Philip talks to Wm Paul Young, the American Christian author whose debut novel The Shack has sold over 18 million copies.