Could the crisis over Catalonia lead to the break up of Spain? With political rhetoric from both Barcelona and Madrid intensifying, David Aaronovitch asks a range of experts whether an independent Catalan state is now a possibility.
He examines what lies behind the Catalan desire for independence and the impact that a split could have on Spain.
Joining David in The Briefing Room:
Miguel Murado, a Spanish journalist
Eduardo Mendoza, one of Spain's best-known authors
Dr Rebecca Richards, statehood expert and Professor of International Relations at Keele University.