Irish border becomes a hurdle for Brexit
Theresa May slams an E.U. proposal as a 'threat' to Britain
LONDON - In the days of the Troubles, as the 30-year sectarian conflict in Northern Ireland was known, the borderlands between the North and the Republic of Ireland were called "bandit country" - a frontier of milk smugglers, gun runners and frequent clashes between British soldiers and Irish Republican Army cells.
Today, because the sides made peace and because both the Irish Republic and Northern Ireland are members of the...