In the Los Angeles Times:
Pedophilia once was thought to stem from psychological influences early in life. Now, many experts view it as a deep-rooted predisposition that does not change.
As a young boy, Paul Christiano loved the world of girls — the way they danced, how their spindly bodies tumbled in gymnastics. In adolescence, as other boys ogled classmates, he was troubled to find himself fantasizing about 7- to 11-year-olds.