Sex Trafficking in the US is big industry, it is estimated that it is a $9.5 billion industry. 83% of confirmed sex trafficking victims in the US were US citizens not illegal immigrants. I think most people just assume that most of the sex trafficking industry in the US involves mainly immigrants, while the truth is far lower. Here are a few interesting links for anyone interested in this subject.
This is a great article on sex trafficking from a victim:
5 Things I Learned as a Sex Slave in Modern America | Cracked.com
Just some statistics on it:
U.S. human trafficking incidents, 2008-2010 Journalist's Resource: Research for Reporting, from Harvard Shorenstein Center
Note: It was mentioned on another thread (White slavery thread in the history subforum) that we should start another thread to discuss the sex slave trade. There was another thread here about Eastern Europe human trafficking and sex trade but it was a year old, and not distinctly dedicated to this. If a mod decides this thread should be merged to the other one, go for it.