A new report from the National Oceanic and Atmospheric Administration found the toll was exponentially greater—278 acres of coral reef gone forever. The report, released last week, confirms suspicions that were raised even before the Corps started chopping away at the rock underbelly of the busiest cruise port in the world. All that activity raised clouds of sand and dirt that smothered corals—and may have led to or exacerbated the outbreak of a terrible disease that's since killed corals all over the Caribbean