By Mark Jefferies Two union officials who filmed the Battle of Orgreave during the 1984 Miners’ Strike have told how they feared someone would be killed. National Union of Mineworkers officers Keith Brookes and Martin Harvey were tasked by boss Arthur Scargill with filming pickets and press conferences for a true record of events. A Channel 4 documentary series will use their footage of the confrontation on June 18 1984 at the coking works in Orgreave, South Yorkshire amidst allegations of heavy-handed policing. Miners can be seen with blood pouring from their heads in the film which casts t…