Mary wrote:
>
> You would have to eat hundreds of cans of tuna to equal the mercury in one
> shot.

Shots? what shots? I read somewhere once that some scientist measured
the mercury in fish before the industrial age (I don't recall how) and
found no difference. Tuna may not be any higher in mercury than they
ever were, but I wonder how many of my ancesters had deep sea fishing
boats ;--)