Academic freedom is the belief that the freedom of inquiry by students and faculty members is essential to the mission of the academy, and that scholars should have freedom to teach or communicate ideas or facts (including those that are inconvenient to external political groups or to authorities) without being targeted for repression, job loss, or imprisonment.^{[citation needed]}

Academic freedom is a contested issue and, therefore, has limitations in practice. In the United States, for example, according to the widely recognized "1940 Statement on Academic Freedom and Tenure", teachers should be careful to avoid controversial matter that is unrelated to the subject. When they speak or write in public, they are free to express their opinions without fear from institutional censorship or discipline, but they should show restraint and clearly indicate that they are not speaking for their institution.^{[citation needed]} Academic tenure protects academic freedom by ensuring that teachers can be fired only for causes such as gross professional incompetence or behavior that evokes condemnation from the academic community itself.^{[citation needed]}

Avram Noam Chomsky (/ˈnoʊm ˈtʃɒmski/; born December 7, 1928) is an American linguist, philosopher,cognitive scientist, historian, and activist. He is an Institute Professor and Professor (Emeritus) in the Department of Linguistics & Philosophy at MIT, where he has worked for over 50 years. Chomsky has been described as the "father of modern linguistics" and a major figure of analytic philosophy. His work has influenced fields such as computer science, mathematics, and psychology.

Ideologically identifying with anarcho-syndicalism and libertarian socialism, Chomsky is known for his critiques of U.S. foreign policy and contemporary capitalism, and he has been described as a prominent cultural figure. His media criticism has included Manufacturing Consent: The Political Economy of the Mass Media (1988), co-written with Edward S. Herman, an analysis articulating the propaganda model theory for examining the media.

According to the Arts and Humanities Citation Index in 1992, Chomsky was cited as a source more often than any other living scholar from 1980 to 1992, and was the eighth most cited source overall. Chomsky is the author of over 100 books. He is credited as the creator or co-creator of the Chomsky hierarchy, the universal grammar theory, and the Chomsky–Schützenberger theorem.

Ward LeRoy Churchill (born October 2, 1947) is an author and political activist. He was a professor of ethnic studies at the University of Colorado at Boulder from 1990 to 2007. The primary focus of his work is on the historical treatment of political dissenters and Native Americans by the United States government. His work features controversial and provocative views, written in a direct, often confrontational style.

In January 2005, Churchill's work attracted publicity because of the widespread circulation of a 2001 essay, "On the Justice of Roosting Chickens". In the essay, he claimed that the September 11, 2001 attacks were a natural and unavoidable consequence of what he views as unlawful US policy, and he referred to the "technocratic corps" working in the World Trade Center as "little Eichmanns".

In March 2005 the University of Colorado began investigating allegations that Churchill had engaged in research misconduct; it reported in June 2006 that he had done so. Churchill was fired on July 24, 2007, leading to a claim by some scholars that he was fired over the ideas he expressed. Churchill filed a lawsuit against the University of Colorado for unlawful termination of employment. In April 2009 a Denver jury found that Churchill was wrongly fired, awarding him $1 in damages. In July, 2009, a District Court judge vacated the monetary award and declined Churchill's request to order his reinstatement, deciding the university has "quasi-judicial immunity". In February, 2010, Churchill appealed the judge's decision. In November 2010, the Colorado Court of Appeals upheld a lower-court's ruling that the University of Colorado officials sued by Ward Churchill were immune from his lawsuit accusing them of violating his First Amendment rights when they dismissed him as a tenured ethnic-studies professor. Churchill has appealed that decision to the Colorado Supreme Court, which agreed in May 2011 to hear his case.