South Carolina is bringing in or harboring aliens in several ways. The most common way is through employment by a South Carolina employer. Employers must obtain a valid work authorization document from the US Department of Homeland Security before hiring a foreign worker. Employers must also register with the US Citizenship and Immigration Services and follow all required employment verification procedures. South Carolina is also a party to the Refugee Resettlement Program, which provides safe haven and assistance to refugees from around the world. Through this program, refugees are provided with medical and mental health services, educational opportunities, legal assistance, and job training. Additionally, undocumented immigrants may be offered temporary protection from deportation if they meet certain criteria. This is known as Deferred Action for Childhood Arrivals (DACA). DACA recipients must meet certain education or military service requirements and pass a background check. Finally, South Carolina is a target for human trafficking, which is the exploitation of people for labor or sex. Traffickers often target immigrants, especially those who are undocumented, and force them into labor or sex work. South Carolina has several laws in place to combat human trafficking, including the South Carolina Human Trafficking Act.