2 of 25: Pilsoon Kang, who lost her son, Joon Koo Kang who worked at World Trade Center, touches the memorial during commemoration ceremony of the 11th anniversary of the Sept. 11, 2001 terrorist attacks by the North Pool at World Trade Center in New York on Tuesday, Sept. 11, 2012. (AP Photo/The New York Times, Chang W. Lee, Pool) (AP Photo/ Chang W. Lee)

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