In the cartoon "Three Brothers", it is revealed that Snafu has two brothers, a carrier pigeon keeper named Tarfu and a dog trainer named Fubar (for "Fucked Up Beyond All Recognition"). As now-declassified work of the United States government, Private Snafu shorts are in the public domain and are thus freely available in numerous places, including on YouTube and Internet Archive. Also, Warner Home Video has begun including Private Snafu shorts as bonus material on their "Looney Tunes Golden Collection". Other commercial DVDs are available from Thunderbean Animation, who released a DVD containing all the Snafu cartoons entitled "Private Snafu Golden Classics", and Bosko Video. At least one of the Private Snafu shorts was used as an exhibit piece: The short "Spies" was used for the World War II exhibit at the International Spy Museum. According to a postwar study of the "Snafu" cartoons, the wartime experiences of authors Theodor Geisel (Dr. Seuss), Philip D. Eastman, and Munro Leaf shaped their successful postwar children's books, especially the use of simple language, and some of the themes. Seuss wrote "The Cat in the Hat" (1957) because Geisel believed the widely used Dick and Jane primers were too boring to encourage children to read. Geisel, Eastman, and Leaf authored books designed to promote personal responsibility, conservation, and respect for multiculturalism, while teaching and accepting the reality of sex differences. Some racial characterisations are considered questionable today. Geisel's characters were often portrayed as rebels who displayed independence of mind. Eastman's characters, on the other hand, typically embraced the wisdom of authority figures. Leaf's heroes were in between, and seemed more ambiguous toward independence and authority. Note: All shorts were created for the U.S. War Department and were created by Warner Bros. Cartoons unless otherwise noted. The films, being produced for the U.S. government, are in the public domain. Released: In addition, "Weapons of War" (1945) was originally planned to be part of the "Few Quick Facts" series but was left out. Additionally "Another Change" (1945) produced by Disney was probably also left out of the Few Quick Series . Unproduced: