Is it lax enforcement in the Americas that leaves individuals vulnerable to exploitation?

Human trafficking first became a global enterprise in the 15th century with the advent of the European slave trade. Since its inception, the contemporary manifestation of the global slave trade has proven an extremely difficult crime to combat for a plethora of reasons, the most prominent being the myriad challenges involved in successfully prosecuting human trafficking cases throughout both developed and developing nations.
Is its Lax Enforcement in the Americas that Leaves Individuals Vulnerable to Exploitation?