New York Times regular columnist, Mr. Nicholas D. Kristof, double winner of the Pulitzer Price, had a very interesting experience with the attempts of rescuing young girls from Cambodian world of human sex trafficking. This page from New York Times offers few articles describing his efforts and the fate of the two girls, who were sold into prostitution, and bought out with cash by Mr. Kristof. Worth reading. Video (a series of videos)of this and related stories from Cambodia.
Also, a video about a Pakistani woman escaping from a brothel.