Although it is not directly stated in the order, it was assumed that individuals in Roosevelt's Executive Order No. 9066 were targeted for internment because

Executive Order 9066 authorized military exclusion zones during World War II without naming an ethnic group. In practice, it was used to forcibly remove and incarcerate people of Japanese ancestry, including Japanese Americans, based on their heritage rather than individual evidence of wrongdoing. The correct choice is “they were Japanese American.”

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