?Spanish police arrested three members of a far-right ?group and fired rubber bullets ?on Saturday night ?in Madrid after tens of thousands had marched across the country to demand action to tackle a housing crisis.Far-right activists, some of ?whom performed Nazi salutes, tried to reach demonstrators camped out in the Puerta del Sol, a central square in the Spanish capital, to protest the housing crisis, the Spanish government said. Earlier, some demonstrators waved posters calling ?for a general strike after the measures drawn up to address mass anger over the eviction ?of an 87-year-old woman in Madrid, and other housing...