Quite recently a story was done on this very topic. Hundreds of the Las Vegas homeless have taken to the sin city tunnel system for refuge. Due to drug use and our economic downturn many people choose to dwell beneath the city of lights rather than above it. Although many of the inhibitants of this underground community have lived there for two years or more, the story of their lives are just beginning to surface. And you thought it was all a party.
[for more info, pics, and a video, click the word word]