Former US President Bill Clinton hugs Sinn Fein president Gerry Adams during the funeral of former Northern Ireland Deputy First Minister Martin McGuinness, in St Columba's Church Long Tower in Derry, Northern Ireland on March 23, 2017.
Former Irish Republican Army commander turned peace negotiator Martin McGuinness divided opinion both in life and in death but on Thursday his supporters gave him the funeral of an Irish chieftain. / AFP PHOTO / POOL / Niall CarsonNIALL CARSON/AFP/Getty Images