The latest edition of five essays with new perspectives on the history of the North East How has Hadrian's Wall affected the long-term relationship between Scotland and England? Poet Bill Herbert was born in Dundee and is now Professor of Poetry and Creative Writing at Newcastle University. As devolution continues to shift the relationship between the two countries, he explores how the most important Roman site in Britain is a constant reminder of the division between the north of England and the 'wild lands' beyond. Recorded in front of an audience at the Sage Gateshead, as part of BBC Radio 3's Free Thinking festival of ideas 2010. Producer: Zahid Warley.