Hollywood needed to feature attacks on American soil and obtained inspirations for dramatic stories from the Philippines. Indeed, the Philippines became a "homefront" that showed the American way of life threatened by the Japanese enemy. Especially popular were the films Texas to Bataan (1942), Corregidor (1943), Bataan (1943), They Were Expendable (1945), and Back to Bataan (1945). The OWI had to approve every film before they could be exported. To facilitate the process the OWI's Bureau of Motion Pictures (BMP) worked with producers, directors, and writers before the shooting started to make sure that the themes reflected patriotic values. While Hollywood had been generally nonpolitical before the war, the liberals who controlled OWI encouraged the expression of New Deal liberalism, bearing in mind the huge domestic audience, as well as an international audience that was equally large. Censorship The Office of Censorship published a code of conduct for newspapers, magazines, and broadcasters. The office did not use government censors to preapprove all articles and radio programs. It relied on voluntary cooperation to avoid subjects, such as troop movements, weather forecasts, and the travels of the President, that might aid the enemy. Local activism One way to enlist everyone in the war effort was scrap collection (called "recycling" decades later). Many everyday commodities were vital to the war effort, and drives were organized to recycle such products as rubber, tin, waste kitchen fats (raw material for explosives), newspaper, lumber, steel, and many others. Popular phrases promoted by the government at the time were "Get into the scrap!" and "Get some cash for your trash" (a nominal sum was paid to the donor for many kinds of scrap items) and Thomas "Fats" Waller even wrote and recorded a song with the latter title. Such commodities as rubber and tin remained highly important as recycled materials until the end of the war, while others, such as steel, were critically needed at first. War propaganda played a prominent role in many of these drives. Nebraska had perhaps the most extensive and well-organized drives; it was mobilized by the Omaha World Herald newspaper. Sports Auto racing In July 1942, the Office of Defense Transportation ordered an indefinite ban on auto racing in an effort to conserve rubber and gasoline. Baseball Baseball was at a peak in its popularity as the national pastime at the outset of the war. In January 1942, however, Commissioner of Baseball