GPS is such an essential part of our lives that it’s easy to forget there was once a world without it. But, like many tech advancements of the 20th century, GPS was originally created by the U.S. military. So how did it become a part of daily civilian life? And how vulnerable is it to manipulation?

Katherine Dunn has written all about this and more in her book, “Little Blue Dot: How GPS Shaped the Modern World.”

Guest:

Katherine Dunn is a science journalist and author of “Little Blue Dot: How GPS Shaped the Modern World.”

Transcript will be available after the show airs on sciencefriday.com.

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How GPS shaped our world

Science Friday

How GPS shaped our world