I'm sure there is some line where biodiversity trumps human convenience. I wouldn't want Herring Gulls to go extinct even if one did steal a piece of chicken r

I'm sure there is some line where biodiversity trumps human convenience. I wouldn't want Herring Gulls to go extinct even if one did steal a piece of chicken right out of my hand once. But I think Smallpox and Guinea Worms are very far from that line.