Batteries that last for 6000 years (or more)

Being the sort of chap that spends most of his time a long way behind the current news, I have only recently encountered Diamond Batteries. Annoyingly, I first encountered the topic on Facebook in a post that, surprisingly for Facebook, was only slightly apocryphal.

Natural Justice

Being in the habit of asking controversial questions, I am prepared to ask another.

At what point, if ever, should a crime be, if not forgiven, then annulled?