The CBS television show “48 Hours” has an informative series of episodes on human trafficking available on its website. The last in the series is titled “Inside the World of Child Sex Trafficking and the High-Tech Approach to Saving Victims.” The episode is about a 15-year-old girl who lives to tell her story about how she runs away in search of love, only to be held captive by a sex trafficker. Learn what actor Ashton Kutcher is doing to help. Visit cbsnews.com.