Where does somebody actually obtain the bacteria, anyhow?

I have a feeling that maybe these cases are the result of someone having too much time on their hands, taking advantage of a bad situation, and not a terrorist attack. It also could be that people contract anthrax in mild cases all the time and it never gets diagnosed, because no one gets tested for it. How do I know the last time I had the flu, it wasn't anthrax? I'm around sheep on a fairly regular basis.

Now we are testing for it, for obvious reasons. And it is a little unnerving, for sure.