Bunkers: The bunker has become the extreme expression of our greatest fears: from pandemics to climate change and nuclear war. Laurie Taylor talks to Bradley Garrett, Assistant Professor in Human Geography at University College Dublin, about the global movement of 'prepping' for social and environmental collapse, or 'Doomsday'. They're joined by Diane Morgan, Lecturer in Cultural Studies at the University of Leeds and author of a study examining the symbolic meaning of the bunker and the way in which demilitarised bunkers have taken on a new cultural life.

Producer: Jayne Egerton