Rachel Aviv of the New Yorker grapples with a very tough question: What should we do with men who have an intractable sexual attraction to children, but who have not yet abused a child? These are the guys who keep getting caught with child porn, but who have never touched a child, as far as anyone knows. Even self-proclaimed experts are very bad at predicting which child porn addicts will become full-blown child abusers. Some never do. Aviv reports that the current approach of indefinite civil commitment for these offenders coupled with dubious psychiatric treatments may be doing more harm than good.