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This article is from the In-Depth Report 9/11: 10 Years Later

Shaping Up: 10 Engineering and Design Facts about One World Trade Center [Infographic]

What was once called the Freedom Tower should soon become the tallest building in the U.S. It will also be among the best prepared in the nation for a terrorist attack or other emergency
 

Interactive by Krista Fuentes. One WTC photo courtesy Port Authority of New York and New Jersey.

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