For more than a month after the Japanese attack on Pearl Harbor in December 1941, no one of high authority in the armed services or elsewhere in the national government suggested seriously that persons of Japanese ancestry should be moved away from the West Coast. The Army's historian wrote that in February and March of 1942 the military estimates were that "there was no real threat of a Japanese invasion" of the area. Yet by March 1942 a program was fully underway to remove about 120,000 persons from their West Coast homes and jobs and place them in internment camps in the interior of the country. About 70,000 of these people were citizens of the United States; two out of every five people sent to the camps were under the age of fifteen or over fifty. All were imprisoned for an indefinite time without any individualized determination of grounds for suspicion of disloyalty, let alone charges of unlawful conduct, to be held in custody until their loyalty might be determined. (See PREVENTATIVE DETENTION.) The basis for their imprisonment was a single common trait?their Japanese ancestry.
The military services came to discover the "military necessity" of relocating the Japanese Americans in response to pressure from the West Coast congressional delegations and from other political leaders in the region?including,
to his later regret, EARL WARREN, then attorney general of California. These politicians were responding, in turn, to a clamor from certain newspapers and labor unions, along with (as U.S. Attorney General FRANCIS BIDDLE later listed them) "the American Legion, the California Joint Immigration Committee, the Native Sons and Daughters of the Golden West, the Western Growers Protective Association, the California Farm Bureau Federation [and] the Chamber of Commerce of Los Angeles." The groups' campaign was aided by newspaper accounts of American military defeats and Japanese atrocities in the early days of the war, and by false reports of sabotage at Pearl Harbor. Anti-Asian racism, long a feature of California, now had a focus. In Hawaii, which had been attacked, no evacuation was proposed; persons of Japanese ancestry constituted almost one third of that territory's population. On the West Coast, Japanese Americans barely exceeded one percent of the population; thus, no political force resisted the mixture of fear, racism, and greed. "The Japanese race is an enemy race," said General John DeWitt in his official report to the War Department. Once the Army urged wholesale evacuation, the opposition of Biddle and the Justice Department was unavailing. President FRANKLIN D. ROOSEVELT sided with the Army, and the evacuation began.
The program, first established by EXECUTIVE ORDER 9066 and then partly ratified by Congress, called for three...