What Happened Next - At The Edge Of The Union (Part 5) 

Series which finds out what happened to people featured in past BBC documentaries. This edition revisits a 1985 film which followed two opposing politicians - Republican Martin McGuinness, who was a member of Sinn Féin and Unionist Gregory Campbell, who also provoked controversy with his hardline views. Over 20 years later, we find out how much McGuinness and Campbell have changed as they've moved from the edge to the centre of government.