could have imagined just a few years ago. >> translator: i didn't know what human trafficking was until i got to the safe house. >> reporter: madison is a survivor of child sex trafficking, and the bras she sells part of a unique reintegration program by a nonprofit called "free the girls." >> when we started we had this idea, and the idea was this bra could change a woman's life, and we really did not have any idea how much those women would change their own lives. >> reporter: we first met kim and dave sterpstra shortly after they started free the girl in 2011. the plan was for kimba to collect donations of new and gently used bras in the u.s. and send them to dave in mozambique, africa where sex trafficking survivors could sell them in the used clothing markets there, providing them with a steady income that would prevent them