A great deal of the human trafficking problem actually starts with human smuggling. Smuggling is an act that is supposed to just transport a person from one country to another without going through any of the legal requirements. But once a person gets to that country, often the United States, the person finds that he or she cannot make it on their own and must turn to others for help. Then the situation turns into trafficking.
Go to this website and read about the FBI efforts to deal with human trafficking. What impact is the uncontrolled entry of people through the southern border having on the trafficking issue? What has to be done to properly identify and track people who enter through the southern border?