U.S.

Associated Press
A sherriff's vehicle sits in flood waters caused by Isaac, Thursday, Aug. 30, 2012, north of LaPlace, La, off Lake Pontchartrain. Isaac's maximum sustained winds had decreased to 45 mph and the National Hurricane Center said it was expected to become a tropical depression by Thursday night. The storm's center was on track to cross Arkansas on Friday and southern Missouri on Friday night, spreading rain as it goes.  (AP Photo/Eric Gay)

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