Given that the goal is 0 and there are plenty of ongoing activities, poorly cleaned up spills, contaminated mining towns, and legacies of carelessness related t

Given that the goal is 0 and there are plenty of ongoing activities, poorly cleaned up spills, contaminated mining towns, and legacies of carelessness related to the nuclear sector that result in 2-200x background in various pockets, it seems like 0 was a pretty good benchmark and should maybe be reduced a little.