Dollar makes a comeback on EU crisis, US economy

The dollar's many detractors may have missed it, but the much-maligned US currency is on the rise. The greenback, thought to be on life support and mostly surviving on safe-haven flows, has been climbing since it struck record lows against the euro in July 2008, helped recently by the Eurozone debt crisis, an improving US economy and a return to the dollar as the reserve currency of choice. 

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