Shereen Nanjiani and her panel of guests review a perfect earthquake of a week in politics - Blair's return to the Chilcot inquiry, and the resignations of both the Prime Minister's communications director Andy Coulson and the Shadow Chancellor, Alan Johnson. Stand by for the shock waves as Shereen's team pick through the debris. They are writer Kirsty Scott, Magnus Gardham, political editor of the Daily Record, and PR director Martin Raymond. There's also an interview with the Irish singer Mary Coughlan, whose story of survival and reconciliation after severe childhood trauma is both moving and inspiring.