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September 11 Anniversary: 50 Pictures We’ll Never Forget

US President George W. Bush has his early morning school reading event interrupted by his Chief of Staff Andrew Card (L) shortly after news of the New York City airplane crashes was available in Sarasota, Florida. (PAUL J. RICHARDS/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.