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?
Sentence (from "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.
Relevant evidence: Yes