What's wrong with hypocrisy? The Philosopher's Arms, everyone's favourite abstract pub, is back with a pint and a philosophical conundrum. This week, presenter Matthew Sweet is joined at at the bar by philosopher Lisa Bortolotti and political scientist David Runciman. Plus human rights activist, Peter Tatchell, who in the past has publicly exposed people whom he has accused of hypocrisy. Producer: David Edmonds.