Human trafficking is the crime of using force or fraud for the purpose of compelled labor or a commercial sex act. The United States considers “trafficking in persons,” “human trafficking,” and “modern slavery” to be interchangeable umbrella terms that refer to both sex trafficking and labor trafficking. The United States was one of the top three countries of origin of federally identified victims in FY 2018. Populations in the United States most at risk of human trafficking include: children in the child welfare and juvenile justice systems; runaway and homeless youth; unaccompanied foreign national children without lawful immigration status; American Indians and Alaska Natives, particularly women and girls; individuals with drug addictions; and migrant laborers (including undocumented workers and temporary workers participating in visa programs).