None of the 9-1-1 operators Brian spoke with asked him how high he’d been inside the building, conditions on the upper floors, or details about which stairwell he’d used. As a result, they never learned potentially lifesaving information that might have helped firefighters or trapped people in the South Tower who survived the crash and then called 9-1-1 for guidance. Amid the chaos, overwhelmed 9-1-1 operators never learned that Stairwell A remained relatively intact above the South Tower impact zone, at least to the 91st floor and possibly higher. No evidence exists that any person who called
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