News08/03/2012 11:28:21
The skyscraper was formerly known as the Freedom Tower.
President Obama and first lady Michelle Obama each signed a beam installed at One World Trade Center.
A crane atop the building raised the beam to the 104th floor after dozens of people, including construction workers and police officers, added signatures.
Obama wrote in marker on the beam: "We remember." "We rebuild." and "We come back stronger!"
A crane atop the building raised the beam to the 104th floor after dozens of people, including construction workers and police officers, added signatures.
Obama wrote in marker on the beam: "We remember." "We rebuild." and "We come back stronger!"