FILE - This Aug. 29, 2007 file photo shows the World Trade Center site, center, surrounded by skyscrapers in New York. Installation of the 408-foot, 758-ton spire on One World Trade Center was ... more 
FILE - This Aug. 29, 2007 file photo shows the World Trade Center site, center, surrounded by skyscrapers in New York. Installation of the 408-foot, 758-ton spire on One World Trade Center was completed Friday, May 10, 2013. It will serve as a world-class broadcast antenna and also as a beacon to ward off aircraft. (AP Photo/Mark Lennihan, File) less 
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Associated Press | Photo By Mark Lennihan, File
Fri, May 10, 2013 1:04 PM EDT