Brexit shakes foundation of Northern Ireland peace 

Twenty-three years ago on Friday, the Irish and British governments, along with most of the political parties in Northern Ireland, signed the Good Friday accords. The deal was intended to end the three decades of bloodshed known as “The Troubles.” Former Irish Prime Minister Bertie Ahern played a key role in hammering out the Good Friday accord. Ahern tells The World’s Carol Hills that Brexit has undercut the peace pact.