This never-before-seen footage of the 9/11 terrorist attacks in NYC is filmed from the vantage point of an NYPD helicopter circling above the area (and briefly landing in Battery Park and then landing once more on the Jersey side of the Hudson River). The footage shows the reaction of some of the helicopter’s occupants as they witness the fall of the first tower (around the 7-minute mark) and then the fall of the 2nd tower (at around the 12-minute mark). At the end of the video, Lower Manhattan is completely covered in smoke. [via]