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September 11 Anniversary: 50 Pictures We’ll Never Forget

Marcy Borders covered in dust as she takes refuge in an office building after one of the World Trade Center towers collapsed in New York. Borders was caught outside on the street as the cloud of smoke and dust enveloped the area. The woman was caught outside on the street as the cloud of smoke and dust enveloped the area. (STAN HONDA/AFP/Getty Images)

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Today marks the 13th anniversary of the September 11, 2001, tragedy, when terrorist attacks by al-Qaeda killed nearly 3,000 people in New York City and Washington, D.C. Remember those who died on this day that changed everything.