United States Citizenship and Immigration Services (USCIS) was established in 2003 to take on the administrative functions of the former Immigration and Naturalization Service after that agency was dismantled. It performs administrative functions specific to immigration, naturalization, and asylum such as processing citizenship, work visa, and benefit applications. USCIS also administers the e-Verify program that was set up to allow employers to verify the citizenship status of job applicants. This program has been controversial because its giant database has been plagued with inaccuracies.