Unionist anger over Bloody Sunday soldier arrest #BBCNolan

A former soldier has been arrested by detectives investigating the events of Bloody Sunday in Londonderry. Thirteen people were killed when British paratroopers opened fire on a civil rights march through the city in January 1972. A fourteenth died later. It is understood he is being questioned over the deaths of William Nash, Michael McDaid and John Young. DUP MP Gregory Campbell said that the question for investigators is whether they are "extending their investigation beyond those who were serving in the police or army on that day." Stephen spoke to DUP MP Gregory Campbell and commentator and former publicity director of Sinn Fein Danny Morrison