How Do They Do It?

Bulletproof Vests, Robots, Formation Skydivers

Discover how formation skydivers train in a wind tunnel, and learn how a bullet proof vest can stop a dozen rounds at point blank range.
Aired: Apr 04, 2007 Genre: DocumentaryDuration: 22m Rating: 0 Country: Canada, Singapore, United Kingdom, United States of America Production: WAGtv