Once again we have a tale of a nanny misbehaving in this case killing the kids she was paid to watch. Of course the presence of nannies in ubber rich enclaves is a constant. Of course I don't like to point the finger at anyone but perhaps we need to rethink the role of extended families and career priorities.
The truth is many people are too caught up in their careers to remember taking care of their kids is job number one. The kids are being raised and cared for by people you don't know.
Now Grandma and extended family may not be perfect but you know exactly who they are. Of course this would mean that the parents could not treat the actual child care provider like a peasant. Children would actually know their families much better.