Rules Integration

Currently, killfile does not supply an "On Killfile" rule for the rules project nor does it respond to the "On delete" rule of the rules project.

I am requesting that Rules Integration be added so that I can have rules respond to a killfile operation.
I particularly need to use this so that I can have a parent node killfile it's child nodes when the parent node gets killfiled.

So am am asking for an Action to perform a killfile to rules to be available as well as having the Rule "On Killfile".