Madrid. Spanish public sector workers blew whistles and horns Friday at a noisy rally in Madrid to protest against government cutbacks that include slashed salaries, AFP reported. The protesters – many waving red flags representing Spain’s two largest unions, the UGT and the CCOO, which organised the rally – gathered outside the finance ministry as they have every Friday this month. Demonstrations were held in other Spanish cities, said the two unions. These protests „will culminate on September 15 with a huge march in Madrid“ to demand that the government cutbacks be put to a referendum.