whilst this in no way detracts from your idea
I have read several short stories which involved elements of this plot, including the make-zombies-work-for-us thing.
Hopefully yours will elevate itself not through innovation, but through aceness.
(
Mockingbird Practitioner of SCIENCE,
Wed 18 Feb 2009, 8:52,
archived)
It's ok, I've been directed to short stories before
I've had my idea independently and don't want it to get sullied by other stories so I'm going to plough on.
(
gronkpan https://twitter.com/VomitingLarry,
Wed 18 Feb 2009, 9:12,
archived)