One thing isn't quite clear to me. Do transactions protect in the event of power problems, or does the "all-or-nothing" quality only come into play under more "normal" circunstances?
Difference in opinions hath cost many millions of lives: for instance, whether flesh be bread, or bread be flesh; whether whistling be a vice or a virtue; whether it be better to kiss a post, or throw it into the fire... (from Gulliver's Travels)
