Article Photos: Megastorm could wreak havoc across 800 miles of US



  Metropolitan Transportation Authority workers cover an entrance to the Canal Street A, C, and E station with plywood to help prevent flooding, Saturday, Oct. 27, 2012, in New York. As Hurricane Sandy approaches the New York region, residents of some flood-prone areas have been told to evacuate and officials are preparing for a possible transit system shutdown. (AP Photo/Mary Altaffer)

Metropolitan Transportation Authority workers cover an entrance to the Canal Street A, C, and E station with plywood to help prevent flooding, Saturday, Oct. 27, 2012, in New York. As Hurricane Sandy approaches the New York region, residents of some flood-prone areas have been told to evacuate and officials are preparing for a possible transit system shutdown. (AP Photo/Mary Altaffer)