Subterranean home of Las Vegas's losers

In the network of drains below America's gambling capital, hundreds of homeless people have been forced to live. Guy Adams meets Sin City's underclass

Guy Adams

The neon sign not far from Steve Dommermuth's bedroom stands 25ft tall, and has become a world-famous symbol of capitalist excess. "Welcome," it declares, with an exuberant flourish, "to Fabulous Las Vegas, Nevada".