Trafficking is a crime separate and distinct from smuggling. You can be an American citizen trafficked by another American citizen inside the territorial borders of the United States. Smuggling, on the other hand, requires the illegal crossing of an international border.
In the crime of smuggling, one person pays another to bring them across an international border illegally. Both are committing a crime against the nation they are trying to enter but there is nothing involuntary about the exchange. The crime of smuggling can become the crime of trafficking if the smuggled person is then placed in debt bondage or made to labor for another through force, fraud or coercion, including threats to turn the person over to immigration authorities.
Trafficking is a crime against a person. Under Texas law you don’t have to be moved to be trafficked. You can be trafficked in your own home. For instance, a mother who brings men to her home to have sex with her underage child is trafficking that child without ever moving her. In the crime of trafficking, only the trafficker is committing a crime even if the trafficked person is being made to engage in a criminal activity like prostitution because either the trafficked person is being forced, defrauded or coerced or because the trafficked person is under the age of 18 and being made a victim of a sexual offense.