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CARLISLE, UNITED KINGDOM - DECEMBER 7: Britain's Prime Minister David Cameron (C) attends a meeting of flood rescue services at police headquarters during a visit to flood hit areas on December 7, 2015 in Carlisle, England. Thousands of homes were flooded as record levels of rainfall from Storm Desmond brought disruption to areas of northern England. (Photo by Andrew Yates/WPA Pool/Getty Images)

CARLISLE, UNITED KINGDOM - DECEMBER 7:  Britain's Prime Minister David Cameron (C) attends a meeting of flood rescue services at police headquarters during a visit to flood hit areas on December 7, 2015 in Carlisle, England.  Thousands of homes were flooded as record levels of rainfall from Storm Desmond brought disruption to areas of northern England.  (Photo by Andrew Yates/WPA Pool/Getty Images)