Forced in to sex or, unbelievably encouraged by their parents, these children are victims of severe abuse. "I left home at age 10. My father abused me" explains Juliana who has sold herself since she was 12 years old. Unemployment and poverty is extremely high in Brazil, when Rosangela was offered a cleaning job by a much older Swiss man, she found it hard to refuse, little did she know she was about to enter the world of trafficking at the age of 17. "He managed to take all my documents, my ID, passport etc, and took me with him." She became his slave and prisoner. Sex trafficking is an appalling truth to many young people - so why is this allowed to carry on? Could it be because the system itself is crooked?