Despite decades of denials, government records confirm that the U.S. Census Bureau provided the U.S. Secret Service with names and addresses of Japanese-Americans during World War II.
The Census Bureau surveys the population every decade with detailed questionnaires but is barred by law from revealing data that could be linked to specific individuals. The Second War Powers Act of 1942 temporarily repealed that protection to assist in the roundup of Japanese-Americans for imprisonment in internment camps in California and six other states during the war. The Bureau previously has acknowledged that it provided neighborhood information on Japanese-Americans for that purpose, but it has maintained that it never provided “microdata,” meaning names and specific information about them, to other agencies.