In the case of Chappelle v. Greater Baton Rouge Airport District et al., 1976, the U.S Supreme Court was asked to consider whether a public airport terminal building constituted a public forum for First Amendment purposes. The plaintiff, Chappelle, had been distributing religious literature in the terminal and was arrested for trespassing after refusing to leave when requested by airport officials. He argued that his arrest violated his First Amendment rights as he believed an airport terminal should be considered a public space where free speech is protected. The court ruled against Chappelle, stating that while certain government-owned properties are indeed considered traditional public forums (such as streets and parks), not all publicly owned facilities fall into this category. They held that an airport's primary function is transportation rather than communication or assembly; therefore it does not constitute a traditional public forum under the First Amendment. This decision clarified how courts determine what constitutes a 'public forum' under constitutional law - taking into account both ownership of property and its historical use - which has implications on where individuals can exercise their right to freedom of speech.

In the dissenting opinion for Chappelle v. Greater Baton Rouge Airport District et al., the justice argued that the majority's decision to dismiss Chappelle's claim under Title VII of the Civil Rights Act was incorrect. The justice believed that there were sufficient grounds to believe that racial discrimination had occurred, and therefore, it should have been allowed to proceed through a trial court rather than being dismissed at an early stage. They also disagreed with the majority's interpretation of Title VII, arguing that it should be broadly interpreted in order to fully protect employees from workplace discrimination based on race or color. Furthermore, they felt that dismissing this case could potentially discourage other victims of racial discrimination from coming forward out of fear their claims would not be taken seriously by courts.