Almost a million people immigrate to the United States yearly, although the Census Bureau predicts that the number will drop to about 700,000 a year by 2011.
The main reason people come to the United States is for better-paying jobs.
For example, one study showed that people who were earning only about $31 a week in Mexico could make $278 a week in the United States.
Today, minority groups are not really in the minority in California, Hawaii, New Mexico, and the District of Columbia, where they make up more than half of the population.
And almost half, or 46 percent of the people living in Texas are minority group members.