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Will newly found 9/11 debris be tested for human remains?

01:25

A piece of wreckage from 9/11 believed to be one of the commercial jets that brought down the World Trade Center was uncovered near Ground Zero. Police have now turned the area into a crime scene. If the pieces contain human DNA, scores of victims who have never been positively identified may bring closure to many families. NBC’s Stephanie Gosk reports.