In this movÂing yet pragÂmatÂic talk, Kevin Bales explains the busiÂness of modÂern slavÂery, a multiÂbilÂlion-dolÂlar econÂoÂmy that underÂpins some of the worst indusÂtries on earth. He shares stats and perÂsonÂal stoÂries from his on-the-ground research — and names the price of freeÂing every slave on earth right now.