To commemorate the 10th anniversary of the attacks, TIME brings you untold stories from 40 men and women whose lives changed that day — from the first responders at the World Trade Center to the warriors of Iraq and Afghanistan, from the architects of the 10-year pursuit of Osama bin Laden to the survivors who rebuilt their lives after enduring unspeakable tragedy. Their words and images, captured in stunning black-and-white portraits offer a powerful tribute to the spirit of resilience. Coupled with dramatic oral histories from people including George W. Bush, Dick Cheney, Donald Rusmfeld, Rudolph Giuliani, Adm. William McRaven (who led the mission that killed Osama bin Laden) and, for the very first time, the only four survivors of the attack on Tower Two of the World Trade Center who were above the point of impact.

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