Why child sex trafficking is 'pervasive' in the U.S.

New charges against billionaire Jeffrey Epstein have brought renewed attention to the problem of sex trafficking in the U.S. What is the scope of this disturbing criminal underground, and how does it prey on marginalized children? Lisa Desjardins talks to Yasmin Vafa of Rights4Girls about how the Epstein case aligns with patterns she sees daily, in which powerful men exploit vulnerable youth.