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Wikipedia search result (2750 words) |
 | The nation-state made immigration a political issue: by definition it is the homeland of a nation defined by shared ethnicity and/or culture, and in most cases immigrants have a different ethnicity and culture. |
 | Immigration is seen as altering the composition of the national population, and consequently the national identity. |
 | Responses to immigration are a controversial topic among environmental activists, especially within the Sierra Club Some oppose the immigration-driven population growth in the United States as unsustainable, and advocate immigration reduction. |
| Wikipedia search result (6951 words) |
 | The United States of America (also known as the United States, the U.S., the U.S.A., the U.S. of A., and America) is a country in North America that extends from the Atlantic Ocean to the Pacific Ocean and shares land borders with Canada and Mexico and a sea border with Russia. |
 | The United States Constitution is the supreme legal document in the American system, and serves as a social contract between the people of the United States and their government. |
 | The economic history of the United States is a story of economic growth that began with marginally successful colonial economies and progressed to the largest industrial economy in the world in the 20th and early 21st century. |