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World Trade Center construction workers hold hands during a prayer at a ceremony for the September 11 cross, Saturday, July 23, 2011, in New York. After the ceremony, the cross was installed at the National September 11 Memorial and Museum. It was discovered upright in the ruins of ground zero following the attacks of Sept. 11, 2001. (AP Photo/Mark Lennihan)

Associated Press
World Trade Center construction workers hold hands during a prayer at a ceremony for the September 11 cross, Saturday, July 23, 2011, in New York.  After the ceremony, the cross was installed at the National September 11 Memorial and Museum. It was discovered upright in the ruins of ground zero following the attacks of Sept. 11, 2001. (AP Photo/Mark Lennihan)
World Trade Center construction workers hold hands during a prayer at a ceremony for the September 11 cross, Saturday, July 23, 2011, in New York. After the ceremony, the cross was installed at the National September 11 Memorial and Museum. It was discovered upright in the ruins of ground zero following the attacks of Sept. 11, 2001. (AP Photo/Mark Lennihan)
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