Why does Tinker v. Des Moines remain an important precedent-setting case?

In Tinker v. Des Moines, the Supreme Court ruled that students do not lose their First Amendment rights at school. Students could wear black armbands to protest the Vietnam War because their expression did not substantially disrupt school activities. The case established an important precedent protecting students’ speech rights; it did not give schools unlimited power to silence unpopular opinions.

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