Article updated: 10/28/2012 1:09 AM

U.S. superstorm threat launches mass evacuations

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Forget distinctions like tropical storm or hurricane. Don't get fixated on a particular track. Wherever it hits, the rare behemoth storm inexorably gathering in the eastern U.S. will afflict a third of the country with sheets of rain, high winds and heavy snow, say officials who warned millions in coastal areas to get out of the way.