Oakland, Calif., in the San Francisco Bay Area, has been dubbed by the FBI as a "high-intensity child prostitution area." Oakland officials say that a third of teenage girls working in prostitution there were abducted and forced onto the streets, and 61 percent of teen prostitutes say they were raped as children.
http://www.npr.org/2010/12/06/131757019/youth-radio-trafficked-teen-girls-describe-life-in-the-game
http://www.npr.org/2010/12/06/131757019/youth-radio-trafficked-teen-girls-describe-life-in-the-game