If Martin Callinan, the Garda Commissioner, believed a criminal offence had been perpetrated within the offices of the Garda Síochána Ombudsman(...)

US diplomat Richard Haass with Harvard professor Meghan O’Sullivan, speaking to the media at Stormont Hotel in Belfast, where he is chairing negotiations dealing with contentious flags, parades and the region’s troubled past. Photograph: Paul Faith/PA Wire

Richard Haass and Meghan O’Sullivan have history on their side when it comes to breakthrough deals. “Outside” involvement has been central to any si(...)