Journalist Mariana Van Zeller infiltrates black markets in Nat Geo series

Award-winning investigative journalist Mariana Van Zeller is shining a light on black markets, human trafficking, hit men and more in the new season of "Trafficked" from National Geographic. WATCH the ABC News Live Stream Here: https://www.youtube.com/watch?v=w_Ma8oQLmSM SUBSCRIBE to ABC NEWS: https://bit.ly/2vZb6yP Watch More on http://abcnews.go.com/ LIKE ABC News on FACEBOOK https://www.facebook.com/abcnews FOLLOW ABC News on TWITTER: https://twitter.com/abc #trafficked #natgeo #abcnl #abcnews