Thousands of Kurds from across Europe travelled to the Paris suburbs Tuesday for the politically charged funeral of three of their own killed in a December attack in the French capital.Buses were chartered to bring people from across France and some neighbouring countries to the ceremony in Villiers-le-Bel, north of Paris, local sources said.Tears and cries of "Martyrs live forever!" greeted the coffins, wrapped in the flags of the Kurdistan Workers' Party (PKK) and the Kurdish-controlled Rojava territory in northern Syria.