Question

"By... the authority vested in me as President of the United States, and Commander in Chief of the Army and Navy, I hereby... direct the Secretary of War, and the Military Commanders whom he may ... designate... to [recommend] military areas in such places... from which any or all persons may be excluded."
- Franklin D. Roosevelt, Executive Order 9066, February 19, 1942
What did Executive Order 9066 indicate about concerns over national security?

The designation of secure military areas on the Pacific coast was to prevent an immediate attack by Nazi Germany.
People of Japanese ancestry were to be excluded from designated military areas on the Pacific coast.
The designation of secure military areas on the Pacific coast was to be determined by local civilian officials.
Suspected war enemies were to be excluded from secure military areas on the Pacific coast.

Answer 1

People of Japanese ancestry were to be excluded from designated military areas on the Pacific coast.

Explanation: EO 9066 authorized military commanders to create exclusion zones and led to the removal and internment of Japanese Americans from the West Coast — it was not aimed at preventing a Nazi attack, nor was control given to local civilian officials.