World Trade Center Collapse
In this audio slide show, civil engineer S. Shyam Sunder describes the series of structural and fire-related events within the towers as they progressed toward catastrophic collapse.
NOVA captures the behind-the-scenes struggle of architects and engineers to make the buildings safe and secure under the pressures of a tight schedule, the demands of practical office space and efficient “green” architecture, and the public's expectations of a fitting site for national remembrance.
The program features interviews with 1 WTC architect David Childs; Chris Ward, executive director of the Port Authority of New York and New Jersey; Mayor Michael Bloomberg, chairman of the 9-11 Memorial Foundation; and Michael Arad, the man behind the breakthrough concept for the 9-11 Memorial.
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