Question:  The Liberator was a monthly socialist magazine established to continue the work of a magazine that federal prosecutors brought charges against its editors for conspiring to obstruct what?

full_context: Document 1: The Nation: The Nation is the oldest continuously published weekly magazine in the United States, and the most widely read weekly journal of liberal/progressive political and cultural news, opinion, and analysis. It was founded on July 6, 1865, as a successor to William Lloyd Garrison's "The Liberator", with the stated mission tomake an earnest effort to bring to the discussion of political and social questions a really critical spirit, and to wage war upon the vices of violence, exaggeration, and misrepresentation by which so much of the political writing of the day is marred.It is published by The Nation Company, L.P., at 33 Irving Place, New York City. and associated with The Nation Institute.
Document 2: The Liberator Magazine: The Liberator Magazine is a publication/production company started by Brian Kasoro, Gayle Smaller, Tazz Hunter, Kenya McKnight, Marcus Harcus and Mike Clark in Minneapolis, Minnesota, USA. The company's first release was published July 21, 2002. Originally known as "The Minneapolis Liberator", the company's name was later changed to "The Liberator Magazine" when it was incorporated and expanded onto the internet.
Document 3: Partisan Review: Partisan Review ("PR") was a small circulation quarterly "little magazine" dealing with literature, politics, and cultural commentary published in New York City. The magazine was launched in 1934 by the Communist Party, USA-affiliated John Reed Club of New York and was initially part of the Communist political orbit. Growing disaffection on the part of "PR"' s primary editors began to make itself felt, however, and the magazine abruptly suspended publication in the fall of 1936. When the magazine reemerged late in 1937, it came with the addition of additional editors and new writers who advanced a political line deeply critical of Stalin's USSR.
Document 4: The Liberator (magazine): The Liberator was a monthly socialist magazine established by Max Eastman and his sister Crystal Eastman in 1918 to continue the work of "The Masses," which was shut down by the wartime mailing regulations of the U.S. government. Intensely political, the magazine included copious quantities of art, poetry, and fiction along with political reporting and commentary. The publication was an organ of the Communist Party of America from late 1922 and was merged with two other publications to form "The Workers Monthly" in 1924.
Document 5: The Masses: The Masses was a graphically innovative magazine of socialist politics published monthly in the United States from 1911 until 1917, when federal prosecutors brought charges against its editors for conspiring to obstruct conscription. It was succeeded by "The Liberator" and then later "The New Masses". It published reportage, fiction, poetry and art by the leading radicals of the time such as Max Eastman, John Reed, Dorothy Day, and Floyd Dell.
Document 6: The New Republic: The New Republic is a liberal American magazine of commentary on politics and the arts published since 1914, with influence on American political and cultural thinking. Founded in 1914 by major leaders of the Progressive Movement, it attempted to find a balance between a progressivism focused on humanitarianism and moral passion, and on the other hand sought a basis in scientific analysis of social issues. It supported American entry into World War One, but discarded much of its faith in the possibility of a scientific liberalism. After the 1980s it incorporated elements of conservatism. In 2014, two years after Chris Hughes purchased the magazine, he ousted its editor and attempted to remake its format and operations, provoking the resignation of the majority of its editors and writers. In early 2016, Hughes announced he was putting the magazine up for sale, indicating the need for "new vision and leadership". It was sold in February 2016 to Win McCormack.
Document 7: 291 (magazine): 291 was an arts and literary magazine that was published from 1915 to 1916 in New York City. It was created and published by a group of four individuals: photographer/modern art promoter Alfred Stieglitz, artist Marius de Zayas, art collector/journalist/poet Agnes E. Meyer and photographer/critic/arts patron Paul Haviland. Initially intended as a way to bring attention to Stieglitz's gallery of the same name (291), it soon became a work of art in itself. The magazine published original art work, essays, poems and commentaries by Francis Picabia, John Marin, Max Jacob, Georges Ribemont-Dessaignes, de Zayas, Stieglitz and other avant-garde artists and writers of the time, and it is credited with being the publication that introduced visual poetry to the United States.
Document 8: The Literary Digest: The Literary Digest was an influential American general interest weekly magazine published by Funk & Wagnalls. Founded by Isaac Kaufmann Funk in 1890, it eventually merged with two similar weekly magazines, "Public Opinion" and "Current Opinion".
Document 9: Public Eye Magazine: The Public Eye Magazine is published by Political Research Associates in Somerville, Massachusetts. The Magazine was founded in 1977 by the Public Eye Network. It currently contains investigative articles about "movements, institutions, and ideologies that undermine human rights." Its primary focus is on right-wing groups in the United States.
Document 10: Socialist Standard: Socialist Standard is a monthly socialist magazine published without interruption since September 1904 by the Socialist Party of Great Britain. The magazine is written in a simple, direct style and focuses mainly on socialist advocacy and Marxian analysis of current events, particularly those affecting the United Kingdom.
Document 11: The Realist: The Realist was a pioneering magazine of "social-political-religious criticism and satire", intended as a hybrid of a grown-ups version of "Mad" and Lyle Stuart's anti-censorship monthly "The Independent." Edited and published by Paul Krassner, and often regarded as a milestone in the American underground or countercultural press of the mid-20th century, it was a nationally-distributed newsstand publication as early as 1958. Publication was discontinued in 2001.
Document 12: In These Times: In These Times is an American politically progressive/democratic socialist monthly magazine of news and opinion published in Chicago, Illinois.
Document 13: Monthly Review: The Monthly Review, established in 1949, is an independent socialist magazine published monthly in New York City. The publication remains the longest continuously published socialist magazine in the United States. The journal has an impact factor of 0.460.
Document 14: The Industrial Pioneer: The Industrial Pioneer was a monthly publication of the Industrial Workers of the World. It was published in Chicago by the general executive board of the IWW from 1921 to 1926, under various editors. The precursor of the "Industrial Pioneer" was the "One Big Union Monthly". The editor of "One Big Union Monthly," John Sandgren, used his position to wage war on the Communists in the IWW. When his editorials became too sectarian, the IWW replaced him as editor in 1921, and changed the name of the publication to the "Industrial Pioneer." The new editor was a Communist, however, and this alienated the non-Communist majority of IWW members. He was removed as editor in 1922.
Document 15: Ürün: The first issue of Ürün Socialist Magazine was published in July 1974. This magazine became the voice of the Atılım Period of the TKP Communist Party of Turkey in the political area. The founder owner of the magazine was Ural Ateşer, the editor of the magazine was Nuri Samyeli. By the sixth issue, Selçuk Uzun became the editor of the magazine, starting from the fortieth issue which was published in October 1977 till the last 55th issue which was published in January 1979 Ahmet Taştan became the editor of the magazine. Ahmet Taştan was judged because of publishing the TKP program in the Ürün Socialist Magazine, and the magazine was deactivated. The founder of the magazine Ural Ateşer is now a journailst in Germany. And Ahmet Taştan is a political immigrant in Sweden.
ground_truth: conscription