Sergi Cutillas was thrilled when Spain joined the euro. Now he wants out. "The eurozone has failed. It was a bad experiment," he said. "It was wishful thinking." The 34-year-old economist wants Spain to abandon the euro. He's far from alone: 25% of the people who use the common currency want to ditch it, according to the latest European Union poll. The threat to the euro is most acute in France, where people will vote Sunday in the first round of a presidential election that features Marine Le Pen. The far right politician, who wants to take France out of the currency union, is expected to advance to a runoff vote ... (full story)