Answer: The passage describes the increasing reliance of the U.S. economy on low-wage workers from Latin America and the Caribbean, especially Mexican workers who played an important role in industries such as railroads, crop harvesting, and mining. The passage notes that Mexican immigrants and other immigrants from countries such as the Dominican Republic, El Salvador, Peru, and Venezuela built new communities in the United States and participated in all sectors of the U.S. economy. The passage highlights the significant contribution of Latin American and Caribbean immigrants to the U.S. economy and society.
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