US constitutional protection of freedom of speech essential in a democracy?

True Topic: Describe the different kinds of speech and discuss which forms receive the highest and lowest levels of US constitutional protection and why is some protection of freedom of speech essential in a democracy? Address the various sides of the issue drawing personal conclusions based on analysis of the issue and demonstrating an understanding of its complexities. Compare and contrast a different viewpoints of sources used on the topic taking into account the limits of a position. Present and informed evaluation of the evidence and different view points surrounding the topic.