The question of whether to hold a post-Brexit referendum on a united Ireland is dominating Thursday's (2 March) elections in Northern Ireland.
Following the success of the Good Friday Peace Agreement in 1998, such an issue was thought unlikely to emerge for several generations - if at all.
But the economic and political ramifications of Britain’s decision to leave the EU has reopened the old debate.
Northern Ireland, a part of the UK which voted to remain in the EU last year...
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