In case you missed it, last night "The Story" featured Matt O'Brien, author of "Beneath the Neon" and "My Week at the Blue Angel," and interviewed him about exploring the tunnels beneath Las Vegas -- and helping the people who call those tunnels home. 

Matt O’Brien has spent the last decade chronicling the lives of the homeless people who live in the tunnels beneath Las Vegas. That’s where he met Rick Cobble who used to sleep in a sewer drain. Matt eventually wrote a book about the people who live underground. Now that the book is out, Matt’s commitment continues. He’s helping people like Rick move up and out of the tunnels.