Bright idea books. High security

"Nuclear weapon bunkers keep the world's dangerous nuclear weapons safe. Guards, electronic security systems, and barriers protect these bunkers while researchers study and maintain the weapons. Learn more about these high-security facilities!"--Provided by publisher.

Describes how Air Force One keeps the U.S. president safe while flying, including descriptions of the plane's security features.

"The United States keeps its gold safe at Fort Knox. How is this done? There are fences, locks, guards, and more. Learn more about this high-security place!"--Provided by the publisher.