FILE - In this July 29, 2008 file photo, an ironworker carries a piece of steel at the "Freedom Tower" construction site in New York. One World Trade Center is at the northwest corner of the site ... more 
FILE - In this July 29, 2008 file photo, an ironworker carries a piece of steel at the "Freedom Tower" construction site in New York. One World Trade Center is at the northwest corner of the site where the twin World Trade Center towers were destroyed in the Sept. 11, 2001, terrorist attacks. (AP Photo/Mark Lennihan, File) less 
1 / 30
Associated Press | Photo By Mark Lennihan, File
Fri, May 10, 2013 1:04 PM EDT