Windows on the World, the high‑end restaurant on the North Tower’s 106th–107th floors, became a horrifying focal point on the morning of 9/11. Christine Olender, charged with a conference that day, made repeated calls to the Port Authority Police as smoke crept into the dining rooms; she and colleagues tried to reach the roof only to find the doors locked and Port Authority command personnel on the 22nd floor unable to unlock them because remote systems had been damaged. As conditions deteriorated, attendees jumped from the floors above the impact zone to escape conflagration and smoke. Olender’s last known communications came before 9:40 a.m.; no one from Windows on the World who was in or above the impact zone survived the North Tower’s 10:28 a.m. collapse. The locked roof doors, the failed centralized control systems, and the frantic final calls became emblematic of the confusion and technological failure that trapped so many that day.
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