A sign stands illuminated above the offices of the NYSE Euronext Lisbon stock exchange in Lisbon, Portugal, on Thursday, July 11, 2013. NYSE Euronext, whose Liffe exchange is the biggest market for short-term interest rate derivatives, is vowing to restore confidence in the London benchmark Libor at the heart of the financial world's biggest scandal. Photographer: Mario Proenca/Bloomberg via Getty Images
{"Image ImageDescription": "A sign stands illuminated above the offices of the NYSE Euronext Lisbon stock exchange in Lisbon, Portugal, on Thursday, July 11, 2013. NYSE Euronext, whose Liffe exchange is the biggest market for short-term interest rate derivatives, is vowing to restore confidence in the London benchmark Libor at the heart of the financial world's biggest scandal. Photographer: Mario Proenca/Bloomberg via Getty Images", "Image Copyright": "2013 Bloomberg"}