The Brexit endgame is underway. This is the week the UK Government and the European Union earmarked for agreeing a deal on the divorce and outlining a future relations. But on the eve of another EU summit, there is still talk of an impasse- focusing on the Irish border and Northern Ireland’s status after Brexit. HARDtalk’s Stephen Sackur speaks to Mairead McGuinness, an Irish MEP and vice president of the European parliament. Is Brexit about to get very messy and very costly?Image: Mairead McGuinness (Credit: Getty Images)