Tracie D. Hall writes: “Writing in the 1st to 2nd centuries AD, Roman poet Juvenal asked a haunting question: “Who will watch the watchers?” In other words, who will regulate those who seek the authority to regulate others? In the present age of neo-censorship—which journalist Rohan Jayasekera describes as “a kind of control on opinion that moves beyond the traditional model” to now include “big business, courtrooms, schools, newsrooms [that] block ideas out of habit, or prejudice, or fear”—the contemporary answer to Juvenal’s question would be librarians.