Final answer:
Obscenity, defamation, and inciting to violence are forms of expression not protected under the Freedom of Speech, which is a part of the First Amendment's protections with certain limitations to ensure safety and public order.
Step-by-step explanation:
Obscenity, Defamation, Inciting to violence are limitations and not protected by the Freedom of Speech. The First Amendment is known for providing robust protections to free speech, but it does not shield certain forms of expression that are considered damaging or dangerous to society. Examples of speech that fall outside these protections include obscenity, defamation (including libel and slander), and speech that incites imminent lawless action. This ensures that while there is a wide berth for free expression, there are necessary constraints to protect individuals and the public order.