This week marks a year since the murder of three young girls in Southport became a catalyst for riots that spread to many parts of the UK. With scenes of unrest at hotels housing asylum seekers in recent weeks, have we learned anything from the events of last year? John Harris is joined by Dame Sara Khan, the former counter-extremism commissioner and government adviser on social cohesion, and Guardian columnist Gaby Hinsliff to discuss how last summer’s violence exposed the fragility of many communities – and what can be done to tackle today’s rising tensions.. Help support our independent journalism at theguardian.com/politicspod