(NEWSER) – If you took Professor Walter Lee Williams' anthropology class at USC, you might be surprised to learn that as of yesterday he's one of the FBI's 10 Most Wanted fugitives. Williams, 64, became the 500th name added to the list in its 63-year history, the Los Angeles Timesreports. The extensive traveler and Fulbright Award winner is accused of sexually exploiting at least 10 children between ages 9 and 17 while abroad. "Because of his status he has the means and access to children, and that's what makes him dangerous," says an FBI agent. Indeed, one website describes Williams' research as focusing on "sexuality in the Southeast Asia/Pacific region."