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National September 11 Memorial
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- 1United States Marks 25th Anniversary of 9/11 Attacks●A Country in Mourning: the 25th Anniversary of the 9/11 Terrorist Attacks
The United States is commemorating the 25th anniversary of the September 11, 2001 terrorist attacks, a moment of national mourning for the nearly 3,000 people killed in New York, Virginia and Pennsylvania. Memorial ceremonies are drawing attention to the lasting impact of the attacks on American security, foreign policy and collective memory a quarter-century on.