Offering calm amid the chaos, New Yorkers gather to grieve and reflect at the 9/11 memorial, built on the site where the Twin Towers once stood. Memorial ceremonies nationwide brought communities together to remember the fallen.
Eleven Years Later, the Nation Reflects on the Tragedy of 9/11
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John Cassidy pauses outside outside of the World Trade Center site on the eleventh anniversary of the terrorist attacks in New York City on Sept. 11, 2012.