Gov. George Pataki ordered the design changes because police were concerned that the tower's placement adjacent to West Street, a major thoroughfare along the west side of Manhattan, would make it vulnerable to a truck bomb.
Original competition winner by Daniel Libeskind (more views)
New Design Offers Additional Safety Features
NEW YORK -- Officials on Wednesday released the design for a new skyscraper at the former World Trade Center site.
The revised Freedom Tower design adds more safety and security features.
New York Gov. George Pataki called the redesign of the Freedom Tower "a better, safer, and prouder symbol of freedom for our skyline."
Redesigned Ground Zero Freedom Tower (more views of both projects)