Pints and philosophical puzzles with Matthew Sweet. Each week Matthew goes to the pub to discuss a knotty conundrum with an audience and a panel of experts. Free will, exploitation, sex, sexism, blame and shame are just some of the topics to be mulled over in this series of The Philosopher's Arms. Tonight we look at historic wrongs. Can we blame people in the past who held views that we now regard as abhorrent, but which were then widely accepted? The programme features philosopher Miranda Fricker. Producer: David Edmonds.