On March 1, 2003, service and benefit functions of the United States Immigration and Naturalization Service (INS) transitioned into the Department of Homeland Security (DHS) as the U.S. Citizenship and Immigration Services (USCIS). USCIS is responsible for the administration of immigration and naturalization adjudication functions and establishing immigration services policies and priorities. These functions include:
It was reported in July 2017 that 32% of naturalized U.S. citizens – 5 million people – were found to be "functionally illiterate" in the English language.[2]