During WWII Japanese, German, Italian, and other ethnic groups were interned. Strangely, the Japanese in Hawaii, with few exceptions, were not interned.
The Executive Order allowing for internment was terminated in 1976.
NOW, THEREFORE, I, GERALD R. FORD, President of the United States of America, do hereby proclaim that all authority conferred by Executive Order 9066 terminated upon the issuance of Proclamation 2714, which formally proclaimed the cessation of hostilities of World War II on December 31, 1946.
Copy of the original Executive Order that provided for internment of citizens.
http://www.ourdocuments.gov/doc.php?...age=transcript