On Sat, 16 Feb 2013 01:07:32 GMT, just as I was about to take a herb,
lid (Windmill) disturbed my reverie and
wrote:

Maybe they could take just a few samples, every few months, and subject
them to rigorous analysis to identify every kind of DNA

Have you given some serious thoughts to the massive cost of this?
--

Cheers

DrT
______________________________
We may not be able to prevent the stormy times in
our lives; but we can always choose whether or not
to dance in the puddles (Jewish proverb).