The document discusses several Supreme Court cases related to student expression rights, including Tinker v. Des Moines which established that students have a right to political expression, and Morse v. Frederick which found that schools can restrict speech they see as promoting illegal drug use. It also outlines requirements imposed by laws like the Children's Internet Protection Act and the Children's Online Privacy Protection Act regarding internet safety policies, filtering, and privacy protections for students. Finally, it discusses when schools can intervene in student expression, such as for substantial disruption of school activities or harassment, and recommends schools adopt comprehensive policies on these issues.