A lingering technical question about the Sept. 11 terrorist attacks still haunts some, and it has political implications: How did 200,000 tons of steel disintegrate and drop in 11 seconds? A thousand architects and engineers want to know, and are calling on Congress to order a new investigation into the destruction of the Twin Towers and Building 7 at the World Trade Center.
Shared 14 years ago
209K views
Shared 15 years ago
8.6K views
Shared 15 years ago
14K views
Shared 15 years ago
7.8K views
Shared 16 years ago
2K views
Shared 17 years ago
25K views
Shared 17 years ago
25K views
Shared 17 years ago
16K views