American Experience

Safety Precautions

Clip: Season 16 | 2m 41s

Before they could sign off on the design for the World Trade Center, engineer Leslie Robertson and his team had to consider all possible events that might take place in a high rise building. One of these possibilities was that of an airplane impact—there had been two incidences of aircraft impact on New York City skyscrapers at that time.

Aired: 09/09/03

Rating: NR

Problems Playing Video? | Closed Captioning

Corporate sponsorship for American Experience is provided by Liberty Mutual Insurance and Consumer Cellular. Major funding by the Alfred P. Sloan Foundation.

Sponsored By:

American Experience.

Explore Free Resources
She Resisted


She Resisted

Celebrate the strategies and tactics of the movement in a new interactive experience. She Resisted explores the final decade of the women’s suffrage movement through its most powerful images, brought to life with color for the first time.