Originally posted by wib
So that leads us back to two theories for the cause:
Power
Previously molested as children (maybe both are connected)
Or perhaps they're just freaks who got into the Catholic Church with every intention of faking their way through the Christian stuff just so they can get their grimey paws on some young stuff?
I just finished helping a friend finish her disitation on child abuse, so I'll answer what I learnt there, although my knowledge is limited to my friends research:
abuse leads to abuse: partially correct, but not as people commonly think. If a child is sexually abused they are much more likely to become criminals in adulthood, but no necessarily sexual criminals. In fact, sexually abused children are more likely to grow into violent offenders. Child neglect is as likely to produce a adult pedophile as child sexual abuse.
child sexual abuse is about power: in some cases, but by no means not all. "Power" abusers are akin to rapists, where the 'kick' they get is in hurting the victim rather than being strictly sexual. Kids are easier to dominate so the kick is greater. This group tend to have violent tendancies as well.
There are other pedophiles who feel that they love children and that there is nothing wrong with this. It's amazing, but they will argue blind that they aren't doing anything wrong! This group have often had bad experiences of adult relationships as a child, either their own (eg being beaten as a child, or abused themselves) or commonly someone elses (witnessing inter-parental violence) which has left them unable to have adult relationships leaving them seaking to fill the gap with children. I don't know what you'd class this group except sick, in every sense.
As far as priests go, if you were attracted to children you might want to run away to an institution that encouraged celebacy too? Maybe the initial hope is that the church & God would be their refuge to resist temptation?