For the second time in as many years, Scotland is facing a choice about the future country it wants to be. This time, however, the Scots are not alone in making that choice. The forthcoming referendum on the UK's membership of the European Union will define Britain's story for decades to come. But the view from Scotland is somewhat different from the rest of the UK. Why does Scotland appear to be more pro-EU? What advantages and disadvantages have membership of the European Union brought? And what happens next? Allan Little has been travelling both in Scotland and abroad to find out.