CNN reports a Midtown Manhattan skyscraper suddenly turned to chaos Monday when a helicopter, just 11 minutes into its flight, crash-landed on the roof above. Several floors of the building shook. Before the alarms started to blare and workers had a full understanding of what was happening, security was ordering them to grab their belongings and evacuate. New York Gov. Andrew Cuomo was among the many New Yorkers who said the incident brought back memories of the September 11 terror attacks at the World Trade Center in Lower Manhattan.

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