In the West, people's freedom of speech is limited by defamation laws, national security considerations, and political correctness.

• Defamation - people are forbidden from making statements which damage someone else's reputation.
• Security - people are forbidden from giving information which may threaten their host country's sovereignty.
• Political Correctness - people who threaten the tenets of political correctness are subject to harassment and threats of physical violence.

See

• Free Press
• Freedom of Association