抄録
During the period from Pearl Harbor to the mass evacuation in mid-1942, the federal goverment enforced a unique press control policy on Japanese-language newspapers. During the first month following Pearl Harbor, the federal government took various suppressive measures such as arrests of publishers, interrogation of staff members, temporary shutdowns of newspapers, and Submission of English translations. Thereafter, the federal government continued to intervene by using less coercive methods. This press control policy, amplified by pressing wartime social conditions, was so effective that it enabled the government to elicit self-censorship without resorting to formal censorship or licensing. This article examines the subject in detail by using primary documents of governmental agencies and newspaper editors and publishers.