They are different. At church, not warning the parents about some predator/pedophile but telling parents to watch their kids is pretty much enough. (Not always, but tends to be.) They are not assigning your daughter or son to work alone with this fellow.
And we already establish that the elders don't keep knowledge confidential like a confession, but share it with the organization.
Besides, if you are going to be claiming you are "God's one true organization," you should be guided to know when it is necessary to protect the children and God can protect His own organization from reproach in that situation.
A service conductor isn't going to assign a minor to work with an adult other than the parent(s). If he did, he'd be confronted and asked not to do it again. Even if the service conductor assigned a minor to work with an adult other than the parent(s), the parents would still have to permit such an arrangement. I've never heard of anyone being assaulted in the door-to-door ministry, but the 10/01/2012 BOE states that a person with any kind of history of abuse is not to "work alone in field service (hence, they should always be accompanied by another adult)."
"Parents watching their kids" has nothing to do with this recent lawsuit, as Jonathan Kendrick was allegedly taking the plaintiff off in his car alone. Such an arrangement would require the parent's expressed permission. Warning others about the presence of a potentially abusive person is definitely an issue to address. The 10/01/2012 BOE states the following; "At the same time that parents are warned about an individual, it would be appropriate for the elders to inform the individual that parents in the congregation will be discreetly informed."
As for what you've stated here; "And we already establish that the elders don't keep knowledge confidential like a confession, but share it with the organization." This is something the elders do if local privacy laws permit.
http://www.jw-media.org/aboutjw/article23.htm
However, even if the elders cannot take congregational action, they are expected to report the allegation to the branch office of Jehovah's Witnesses in their country, if local privacy laws permit. In addition to making a report to the branch office, the elders may be required by law to report even uncorroborated or unsubstantiated allegations to the authorities. If so, the elders receive proper legal direction to ensure that they comply with the law. Additionally, the victim or anyone else who has knowledge of the allegation may wish to report the matter to the authorities, and it is his or her absolute right to do so.
There are authorized channels to issue warnings to others about something of this nature.
http://www.umc.org/site/apps/nlnet/content2.aspx?c=lwL4KnN1LtH&b=4951419&ct=6833419
Methodist Church: Church Participation by a Registered Child Sex Offender - Adopted in 2004
What's stated in the 10/01/2012 BOE obviously applies to anyone on the national sex-offender registry. Divulging this type of information into the congregation through an unauthorized channel can result in a defamation lawsuit.
http://www.macon.com/2010/07/07/1187436/500k-awarded-in-slander-lawsuit.html
A Twiggs County jury has awarded a Houston County woman more than $500,000 in damages and attorney's fees after her former pastor told the congregation in 2006 that she had committed some form of "fornication."
No organization/church has ever been sued for church leaders failing to disclose the identity of a known abuser to their church nor can they be. There have been clergymen/pastors that have been charged for failing to comply with mandatory reporting laws. To my knowledge, no elder(s) of Jehovah's Witnesses have ever been charged.
As mandatory reporters under Arizona Revised Statue, Holmes said the pastors had a duty to report to CPS and/or law enforcement that this was occurring.
The pastors were both arrested Tuesday and booked on one count each of failure to report sexual abuse.
The rapist was identified as Chris Denman, a 20-year old former employee of the church. He was arrested for allegedly raping the girl in a stairwell on the main campus of the 17,000-member church.
The accused staff members, who are pleading not guilty to a misdemeanor count of failing to report child abuse, were assigned different roles after the incident.
Senior Pastor Daugherty has also apologized for the incident and called upon the congregation to report any incidents of abuse that they notice or become aware of.
The church continues to fight the $75,000 lawsuit.