BY STEPHEN L. BERNARD NEW YORK—Euro-zone debt concerns rattled markets, sending the euro and other riskier assets sharply lower. The euro fell toward $1.40, hit a record low against the Swiss franc and touched a multi-month low against the yen. Global economic growth worries were also driving trading lower as disappointment from Friday's U.S. employment report seeped into a new week. "The euro-zone debt situation hasn't really improved since Greece passed the austerity plan" last month, ...

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