Although Diane Sawyer's 20/20 special on prostitution didn't impart much new information about the oldest profession, here's something that did throw us for a loop: A 13-year-old girl has been arrested in Dallas for pimping other underage, middle schoolers for everything from stripteases and "exotic dancing" to actual sex acts. The 13-year old was luring friends into prostitution by offers of large sums of cash. Says a Dallas police officer involved in the case, "One of the remarkable things we learned through all of this is there's a tremendous amount of money in all this, so a huge demand for young girls in prostitution world." [WFAA]