'I came down here to be forgotten': life in the tunnels beneath Las Vegas

An estimated 300 people live in the flood tunnels underneath Las Vegas, and many of them struggle with substance abuse and addiction. Paul Vautrinot was one of them. Vautrinot visits the tunnels regularly to try and help residents there find a way out, and into transitional housing View the video at http://ift.tt/2AmcRr7