I seen it on a documentary about human trafficking... Human trafficking is a disgusting trade where they kidnap girls and children at gun point, sale them into slavery, ship them accross the world, and make money off of them being raped. The women have no rights, and are kept in line from trying to escape by threats made by their pimp to hurt or kill their family members. Currently it's a new crime market that is fastly rising, it is already rivaling the illegal drugs and firearms trades.... Lotsa this goes on in Mexico, but it happens all over the world... But Mexico is one of the leading nations in this crime market... So is America because it's easy for them to stay on the run and avoid capture here, due to the fact we're like many nations conglomerated into one bigger nation (states). They just keep them moving from state to state, town to town... Many of these women end up dying from AIDS too.
They often pose as modeling agencies, escort agencies, mail order bride agencies, etc.. Escorts are usually trained through fear to hide that they've been trafficked, but there are ways to know if she's been trafficked, signs to look for. I know this because I studied it so I would know, because this is the only way I can get laid obviously lol. Like one woman I hired had an "I don't wanna be here" kinda attitude, she insisted on doing it in the dark with no lights on (possibly so I didn't see any scars where she might have been beaten), she wouldn't do oral... So I didn't do anything with her... About a month later a trafficking ring was busted up in my area, it was lead by some hispanic dude... Damn I can't remember the dude's name though.