NBC5 Investigates has embarked on an on-going examination of SEX TRAFFICKING IN CHICAGO. We often hear of international sex trafficking, but many don't realize it is happening on their own blocks. Young women, often minors, are lured into the sex trade through the Internet, social media or even by the traditional means of promises of love and protection. Many are already victims of sexual assault. They have covered several stories since 2011 and this year took a close look at the people who buy sex; the people who try to help victims, and where the sex trade and trafficking is growing.