Until recently, most of the people who came to Emilio Amaya's office in San Bernardino were working illegally. Now the flow of immigrants has slowed, and those who used to toil on building sites and in restaurant kitchens are taking long breaks to visit their relatives. Fortunately, a new line of business has emerged. Mr Amaya is helping people fill in forms that will enable them to move their possessions back to Mexico.rnIt is an abrupt reversal of a once seemingly inexorable trend. Ever since 2002, when America began to recover from a mild economic downturn, migrants both legal and illegal have streamed over the border. By 2006 Americans rated immigration as the nation's second-most-important problem after the Iraq war, according to Gallup. A bold attempt to reform immigration laws the following year was scuppered by an extraordinary outburst of popular anger. Yet, almost at that moment, the problem began to go away.
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