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                      Impact to Collapse 
                    
                      9/11 Conspiracy Theories 
                    
                      Towers of Innovation 
                    
                      A Survivor's Story  | 
              
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                      The Tallest Tower 
                    
                      Outfitting Firefighters 
                    
                      The Structure of Metal  | 
              
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                    TV Program Description: Note: The following Preview, TV Program Description, Links & Books, and Teacher's Guide go with the 2006 NOVA program "Building on Ground Zero": 
                    
                      Watch a Preview 
                    TV Program Description  | 
              
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