Sex Trade (S02E09)

Sex is a multi-billion-dollar industry in the United States. From the individual sex worker scraping by, to illegitimate citizens helped over the border and then forced into sex slavery, all the way up to high-end escorts and the pimps who profit from them- everyone's looking for their cut. But the sex industry often goes hand-in-hand with monstrous violence. In this cutthroat hierarchy, whoever holds the cash is king. (National Geographic)