Final answer:
Freedom of expression is integral to American society as it underpins representative democracy, enables individual liberty, and is protected by the First Amendment, although not absolute.
Step-by-step explanation:
Freedom of expression is a fundamental right in American society because it is essential to the functioning of our representative democracy. The First Amendment guarantees the right to free speech, which includes the freedom to criticize the government and engage in the marketplace of ideas. This right is crucial for political participation and self-government, as it helps to support the political process and enables citizens to freely share their thoughts and opinions without fear of retribution. While the freedom of expression is broad, it is not absolute; certain types of speech that may cause harm or incite violence are not protected. Ultimately, this freedom supports a society that values the exchange of ideas and holds dear the concept of individual liberty.