The shock is visceral, the future uncertain. Deep-seated grievances lie behind this vote

The reaction to last week’s vote has been visceral, writes Tony Travers. Enormous uncertainty lies ahead. Both of the main parties are in turmoil as they confront the biggest upheaval in British politics since 1945. He explores the different reasons why people voted to leave, and asks whether the systemic problems they reveal can be solved by leaving the EU. If not, how will politicians stem the anger and frustration of Leave voters?