[RGVTx]

I saw an expert on Fox News yesterday say how many spores it takes for inhalation of anthrax to cause illness. It was a large amount, but the number escapes me now. He followed by saying that amount would fit on the head of a pin. So it a large amount of spores, but would be almost undetectable by eyesight.

[2nd Amendment Enforcer]

It just takes one small sniff to inhale 12,000 spores.