We're distrustful, unequal and isolated. That's according to the figures showing a decline in happy community feeling since the 1960s. But can we do anything to regain the healthier communal lives enjoyed by many of our parents, grandparents or great-grandparents? We talk to a hopeful trio - an economist, a political scientist and a US senator - about how we can reduce social isolation, temper political division and prioritize the kind of mixing and meeting that makes neighbors into friends.    Further reading:   Robert Putnam Bowling Alone: The Collapse and Revival of American Community and The Upswing: How America Came Together a Century Ago and How We Can Do It Again.  Lord Richard Layard Can We Be Happier? Evidence and Ethics and Wellbeing: Science and Policy (co-authored by Jan-Emmanuel De Neve). See omnystudio.com/listener for privacy information.