Why is it hard to stop human trafficking?

Yes, I guess. Since there are many people doing it all over the world, that state may not be able to track all of them down. Therefore, the business will start all over with the people who are not in jail.

Do you have options for this answer

Yes you are cute answer theories to explain the colonization of the new world the last great habitable landmass to be occupied by humans focus on the bering land bridge, or beringia, which emerge by siberia and alaska the last ice age.