News stories about the sex trade industry usually start with something like, "Slavery is alive and well in (insert city or country name)." And we hear about the forced enslavement of young girls and women for sex, and of course it's beyond horrible and should be forced into nonexistence.
But TIME puts the size of the problem into stark perspective:
Despite more than a dozen international conventions banning slavery in the past 150 years, there are more slaves today than at any point in human history. Slaves are those forced to perform services for no pay beyond subsistence and for the profit of others who hold them through fraud and violence.