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NEW ORLEANS, LA - AUGUST 27:  A worker attaches plywood to the window of his shop ahead of Tropical Storm Isaac on August 27, 2012 in New Orleans, Louisiana. Tropical Storm Isaac is expected to strengthen into at least a Category 1 hurricane before making landfall near Louisiana.  (Photo by Chris Graythen/Getty Images)
NEW ORLEANS, LA - AUGUST 27:  A worker attaches plywood to the window of his shop ahead of Tropical Storm Isaac on August 27, 2012 in New Orleans, Louisiana. Tropical Storm Isaac is expected to strengthen into at least a Category 1 hurricane before making landfall near Louisiana.  (Photo by Chris Graythen/Getty Images)

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    Los pasos de Isaac

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Los pasos de Isaac

La ciudad de Nueva Orleans aprendió las lecciones del huracán Katrina y está preparada para el impacto de Isaac.

Los pasos de Isaac

La ciudad de Nueva Orleans aprendió las lecciones del huracán Katrina y está preparada para el impacto de Isaac.