They give someone the opportunity to let something happen. Common sense and reasonable caution are the answers to preventing many of the crimes. Police recommend that the backgrounds of potential baby sitters or daycare workers be checked before the child is left with them. Or, if someone seems to be loitering around a school when classes get out, it might be wise to notify police immediately. Parents need to pay more attention to their children, even if they are teen-agers, and the groups they're participating in.
Some youth groups are places where people look for victims.
Not long ago, one suspect was caught who had been a teacher and counselor at a summer camp for years. But we know that it happens. It's a shame that young men, for whatever reason, don't want to report it. Both Rohde and Monlux, parents themselves, are most concerned about the victims. They feel guilty about what happened, just like they feel guilty that their parents got divorced.