'A trafficked sex slave could be sold off as a virgin for $7,000 … a child slave for $20' – video

Siddharth Kara, Harvard University fellow and author of three books on modern-day slavery, talks about the profits and losses of slavery and what he has learned from 12 years of research into trafficking, across six continents

Siddharth Kara: a global economy untainted by slavery? It can happen