World Trade Center: Anatomy of a Collapse高清完整正版视频在线观看

When they were christened in 1972, the twin towers were the largest buildings ever built – and they survived 23 years without any major incidents. Discover how the World Trade Center towers were built, how they survived a terrorist attack in 1993 and why they came down eight years later. 　　CGI graphics and eyewitness interviews unravel the split-second events of September 11th in...