In the first of a two-part programme, ITV's political editor Robert Peston examines the case for staying or leaving the European Union ahead of the referendum in June. He looks at whether Britain's exit really would mean some medium term drop in prosperity as some predict, and examines whether that is a price we are prepared to pay for increased control over our laws and borders. He travels to Switzerland to see if we could embrace their version of life on the outside of the EU.