There was a lot of heavy-lifting done by a lot of people to make the Good Friday Agreement happen, but some key individuals shouldered more of the burden than others. Mark Carruthers is joined by David Kerr, the former Director of Communications with the UUP, his opposite number in the SDLP, Conall McDevitt, Kate Fearon who was the Women's Coalitions's Chief of Staff and Mark Simpson, who covered the negotiations for BBC NI .