... So much of today's contentious immigration debate focuses on those arriving from Latin America to work in agriculture or take low-level service jobs that Americans tend to spurn. But a new study by Stuart Anderson of the National Foundation for American Policy reminds us that the contributions of skilled foreign-born professionals and their offspring are no less important to the U.S. Without them the country would be hard pressed to maintain its world-wide advantage in such fields as math and science. The report, titled "The Multiplier Effect," will be released on Monday and available at www.nfap.net1. Here are some...