Hospitals, especially in rural areas, have been hopelessly crippled by the storm, which has left them dependent on backup generators for power, threatening the lives of thousands of vulnerable patients. Shipments of diesel fuel to the hospitals are delivered by armed guards to protect against looters – which sounds like something from the plot of one of the "Mad Max" movies.

CNN sent low-flying planes over the island to survey the landscape, and they've brought back some stunning footage of the damage. News anchor Jake Tapper tweeted this before-and-after photo, which shows how more than 90% remains mired in blackouts more than a week after the storm made landfall.