The line I quoted in my prior response came from the CDC not the FDA per the article. My main question is why the CDC is advising not using antibiotics unless a positive test for the infection has occurred, yet ten thousand people are being treated with Cipro, et al, for potential anthrax exposure without any positive test?
Supply, profiteering, and panic are the other reasons. But prescription drugs do kill and should not be taken unless you have good reason.