FILE - In this Oct. 29, 2012, file photo, ambulances wait outside NYU Langone Medical Center Monday evening during superstorm Sandy to assist in the evacuation of patients. Efforts to defend two of the city’s busiest, most important medical centers against flood broke down during superstorm Sandy this week. Nearly 1,000 patients had to be evacuated from NYU Langone Medical Center and Bellevue Hospital Center after backup power systems failed when their basements flooded. (AP Photo/ John Minchillo, File)

Associated Press
FILE - In this Oct. 29, 2012, file photo, ambulances wait outside  NYU Langone Medical Center Monday evening during superstorm Sandy to assist in the evacuation of patients. Efforts to defend two of the city’s busiest, most important medical centers against flood broke down during superstorm Sandy this week. Nearly 1,000 patients had to be evacuated from NYU Langone Medical Center and Bellevue Hospital Center after backup power systems failed when their basements flooded. (AP Photo/ John Minchillo, File)
FILE - In this Oct. 29, 2012, file photo, ambulances wait outside NYU Langone Medical Center Monday evening during superstorm Sandy to assist in the evacuation of patients. Efforts to defend two of the city’s busiest, most important medical centers against flood broke down during superstorm Sandy this week. Nearly 1,000 patients had to be evacuated from NYU Langone Medical Center and Bellevue Hospital Center after backup power systems failed when their basements flooded. (AP Photo/ John Minchillo, File)
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