Lessons for UK and Ireland? Norway, Sweden keep EU external border soft

By Terje SolsvikOSLO (Reuters) - Sharing a border of 1,600 km (1,000 miles), with close to 80 crossings, Norway and Sweden face some of the challenges that Ireland and Northern Ireland may experience when the United Kingdom leaves the European Union.On Wednesday Britain published a paper arguing there should be no border posts or immigration checks between Ireland and the British province of Northern Ireland after Brexit.This are familiar issues for EU member Sweden and non-EU Norway.