The United States is now admitting nearly one million legal immigrants per year, while the flow of illegal aliens into the country continues to increase steadily. The debate over immigration policy has typically focused on three fundamental questions: How do immigrants perform economically...

Since the 1970s, the striking increase in immigration to the United States has been accompanied by a marked change in the composition of the immigrant community, with a much higher percentage of foreign-born workers coming from Latin America and Asia and a dramatically lower percentage from...