July 28 (Bloomberg) — Italian Prime Minister Silvio Berlusconi called the euro a ‘disaster,’ blaming the currency for Italy’s economic slump and seeking to use anti-euro sentiment in his election campaign against opposition leader Romano Prodi. “Prodi’s euro has been a ripoff,” he said at a meeting of his Forza Italia party in Rome today, referring to the former European Commission president whom he will face in elections next year.