Page 57 - NAVAL SCIENCE 3 TEXTBOOK

62 NAVAL KN OWLEDGE

14. What are some of the ways in which classified material might VOCABULARY
be compromised?
intelligence co un terin tell igence
15. A. What are the three levels of security classification given to
espionage DHS
official material?
intelligence community CIA
B. To what degree would national security be damaged by the
secret police overt, covert
compromise of each?
classified material security breach
bugging device security clearance
CRITICAL THINKING compromised DIA
registered publications NSA
1. John Wallzer was a Navy warrant officer who spied for the
security classification NCIS
Soviet government. Research his crimes and list the things he
sold to the Soviets and the impact this had on our national
security.
2. During World War II the German military used a code
machine called ENIGMA. Research this machine, and
describe how the Allies broke the ENIGMA code.
3. Devise a secret code using the juxtaposition of letters and
numbers. Describe how you would maintain the security of
this code. Send a friend a message using your code. How hard
do you think it would be to break your code?