How divided are we?

As the Brexit negotiations rumble on Britain appears more divided than ever. This week David Aaronovitch and his guests ask how deep is that division and what it would take to unify the country?Contributors: Professor Sara Hobolt, London School of Economics Professor Sir John Curtice, University of Strathclyde Margaret MacMillan, emeritus Professor of International History at Oxford University Deborah Mattinson, Founder, BritainThinks Paula Surridge, Senior Lecturer, University of Bristol