Voters in Northern Ireland will head to the polls on March 2 to choose a new government, albeit ahead of schedule. The region's last administration, elected in May 2016, collapsed in January in the face of growing friction between the nationalist Sinn Fein party and the Democratic Unionist Party (DUP). On top of the social, political and economic challenges that the Brexit will doubtless present, Northern Ireland's next government will also have to contend with the fact that the Good Friday Agreement, the framework responsible for bringing two decades of peace to the restive region, is beginning to wear out....