Pedophilia can be something you're born with. It's not an addiction, although pedophiles can be sex addicts and are often given addiction-type treatment. As a sex addict, I'm convinced we fail these people in ways that increase our risks.
Of kinks, crimes, and kinds: A look behind the scenes at how the American Psychiatric Association's Paraphilias Sub-Work Group proposed revisions to the DSM for all manner of things relating to sexual arousal brought about by atypical objects, situations, or individuals.