"Freedom of Speech" in the US is often misunderstood. You can't yell "fire!" in a crowded theater. There are certain basic legal limits in place.

Freedom of Speech has to do more with the expression of ideas. Dissidence is an American tradition. I hope it doesn't become an endangered species.

Inflammatory speech can be protected under certain circumstances but not if it leads
to violence against a group of people. The KKK in this country can be reigned in for
their rhetoric. The Nazi Party is not given the freedom to express their ideas openly in a parade if they advocate violence. We have courts of law to settle this question.

Dissidence which promotes a violent response by law enforcement is a violation of the
American tradition of Free Speech. Warrantless wiretapping is another infringement.

It's important to make a distinction between Free Speech, (the right to express unpopular ideas) from using inflammatory language to promote violence against groups or individuals.