Final answer:
The Supreme Court generally allows the government to limit or restrict seditious speech if it poses a clear and present danger to the security of the United States or its people. Abstract or theoretical speech critical of the government is protected, but speech that directly promotes violence can be limited. Prior restraint is not allowed unless in extreme circumstances.
Step-by-step explanation:
In most cases involving seditious speech, the Supreme Court generally has found that it is reasonable for the government to limit or restrict the speech if it poses a clear and present danger to the security of the United States or its people. The Court has ruled that abstract or theoretical speech critical of the government is protected by the First Amendment, but speech that directly promotes or incites violence against the government can be limited. The government cannot exercise prior restraint, which means it cannot prevent someone from speaking or expressing themselves unless there are extreme circumstances.