Despite the historical growth in the scope and powers of government, particularly after World War II, in the early 21st century the political and economic systems of most Western countries—especially the United Kingdom and the United States—continued to be based largely on classical liberal principles. Accordingly, libertarians in those countries tended to focus on smaller deviations from liberal principles, creating the perception among many that their views were radical or extreme. In the early 21st century, self-identified libertarians constituted a major current of the antigovernment Tea Party movement in the United States. However, explicitly libertarian political parties (such as the ...(100 of 3747 words)