Final answer:
Japanese American internment during World War II was based on racist sentiments and war hysteria rather than evidence of disloyalty; around 120,000 individuals were interned, most were American citizens, and the policy was later recognized as unjust with reparations provided.
Step-by-step explanation:
The question seems to touch upon the historical event of Japanese American internment during World War II. All statements about the relocation of people of Japanese ancestry during the war are generally correct except for any statements that might suggest that the Japanese Americans posed a real threat of espionage or sabotage, or that the relocation measures were based on actual evidence of disloyalty.
In fact, a study ordered by President Roosevelt found little danger of disloyalty among West Coast Japanese Americans, but relocation proceeded due to racist sentiments, war hysteria, and a failure of political leadership. The internment affected around 120,000 people, two-thirds of whom were American citizens, none of whom had committed any disloyal acts. An act signed by President Reagan in 1988 acknowledged these actions as unjust and provided reparations to survivors.