VIDEO DESCRIPTION

John explains how we’re healthier, richer, and safer than ever before.

To download this video, please login. If you don’t have an account, register now for free!

This video is included in our Online Quizzes section.

Enjoy this video?

You can access many more resources like quizzes, teacher's guides, and free DVDs when you register! It will take you less than two minutes, and best of all: it's FREE!