Cranes work adjacent to the spire on top of One World Trade Center, Wednesday, May 1, 2013 in New York. The last piece of spire will be hoisted to the roof on Thursday, weather permitting, according ... more 
Cranes work adjacent to the spire on top of One World Trade Center, Wednesday, May 1, 2013 in New York. The last piece of spire will be hoisted to the roof on Thursday, weather permitting, according to a spokesperson for the Port Authority of New York and New Jersey. (AP Photo/Mark Lennihan) less 
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Associated Press | Photo By Mark Lennihan
Thu, May 2, 2013 11:59 AM EDT