 The U.S. economy needs both high-skilled and low-skilled immigrant workers to remain competitive and to have enough workers who continue to pay into Social Security and Medicare as the U.S. population grows older.Nonetheless, there are currently very few channels for immigration to the U.S. for work-related reasons under current law.Furthermore, Amnesty International has taken concern regarding the excessive brutality inflicted upon illegal immigrants, which includes beatings, sexual assault, denial of medical attention, and denial of food, water and warmth for long periods.