A healthy US economy's secret ingredient: Immigrant workers, eager to fill jobs

Reaching the United States was a harrowing ordeal. Silva, 25, her husband and their then-7-year-old daughter braved the jungles of Panama’ s Darien Gap, traveled the length of Mexico, crossed the Rio Grande and then themselves in to the U.S. Border Patrol in Brownsville, Texas. The millions of jobs that Silva and other new immigrant arrivals have been filling in the…