If this hypothesis is true (and so far it seems to fit all known facts very well), then it should be comforting to know that the sky is not falling, we can survive this attack. A little bit of prudence will go a long way.
Smallpox is a much, much greater worry, however.
Agreed. I don't care about anthrax. But what about smallpox, do we renew (or get) our immunity by hanging out with the cows?