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Test Blasting Begins At World Trade Center Site

NEW YORK - JUNE 12: An excavator moves protective mats into position over the hole where test blasts were placed and later fired in preparation for the footings of the Freedom Tower at the World Trade Center site June 12, 2006 in New York City. The blasts, which were buried more than 85 feet below street level, resonated about 15 seconds and were faintly heard by pedestrians along Vesey Street. (Photo by Michael Brown/Getty Images)

‘Freedom Tower’ rises from Ground Zero

In the 11 years since terrorists toppled the World Trade Center’s twin towers, developers, designers, victims’ families, and politicians have pulled together to rebuild what has been dubbed “Freedom Tower.” Americans have watched as the structure, which when completed will 1,776 feet tall, rise from the ashes of Ground Zero. But the effort has not been easy. There has been much debate over the structure’s design and soaring costs, which has delayed its progress.