The power of 'numbers' in global politics: Laurie Taylor talks to the economist, Lorenzo Fioramonti, about the hidden agendas which may underpin the use of statistics, affecting the way we deal with poverty and sustainability. Numbers are at the heart of debates on the GDP which drives our economies and the credit ratings which steer financial markets. But what is behind these numbers?

Also, pride and prejudice in Northern Ireland: The social anthropologist, Jennifer Curtis, discusses her research with Belfast's LGBT Pride Festival to explore religious groups' increasing support for gay rights since 2008. She's joined by Andrew McKinnon, an expert on the sociology of religion.

Producer: Jayne Egerton.