We often hear of jobs in this country that only immigrant workers are willing to do, for the most part. There are also some jobs where there is a shortage of Americans who are qualified to do the work.In 2005, Topeka Unified School District 501 started searching abroad to find highly qualified teachers for hard-to-fill openings in math, science and special education. Now, as reported by the Topeka Capital-Journal, six teachers from the Philippines, here since 2006, may have to leave the country.The school district wants these teachers to stay, but the U.S. Department of Labor has blocked the district’s applications for permanent residency for them.