KAYE: You might not think, given the huge number of prostitution ads plastering the web all over America, but the oldest profession is illegal in America with the exception of a few rural counties in Nevada. CNN's Amber Lyon has spent a year of illegal trafficking of underage girls in America, a brutal trade affecting up to 300,000 American children. As part of that, she went to America's most famous legal brothel, the Moonlight Bunny Ranch. The women who work there do so freely and make a lot of money. But as Amber Lyon discovered, many are still haunted by their past.</s>DENNIS HOF, MOONLITE BUNNY RANCH: There's a lot of sexual trafficking going on in Las Vegas.</s>AMBER LYON, CNN CORRESPONDENT: Dennis Hof, he's been called America's "Pimp Master General," but he considers himself a businessman.</s>HOF: Hey, I love it!</s>LYON: And what he does is legal.</s>HOF: I have a show on</s>HBO. LYON: Hof is the owner of the most famous legal brothel in America, the Moonlite Bunny Ranch. It's the setting for HBO's long running reality series "Cat House".</s>HOF: People love the sex business and I love being a part of it.</s>LYON: What he doesn't love are pimps.</s>LYON (on camera): Do you think pimps just suck?</s>HOF: Pimps are the worst leeches in the world. It's in Birmingham. It's Charleston. It's everywhere. It's everywhere in America there are pimps that are trying to grab the life of young girls and take them away from their families.</s>LYON: And what types of money are pimps pulling in?</s>HOF: Oh, tens of thousands of dollars a week.</s>LYON: A week.</s>HOF: Oh, yes, absolutely.</s>LYON: What is it with underage girls? Do pimps make more money offer of them? Why are there so many underage girls?
new CNN special focuses on child Sex Trafficking in America