From 1951 to 1955, the FBI operated a secret "Responsibilities Program" that distributed anonymous documents with evidence from FBI files of Communist affiliations on the part of teachers, lawyers, and others.
从1951到1955年，FBI开展了一个秘密的「责任计划」，从FBI共产关联证据那里发布匿名文件，包括教师、律师和其它人群。