In truth, the argument does them a significant disservice. Anthrax, as lethal as the Ebola virus, presents a clear and present danger to U.S. service personnel.
Anthrax is the weapon of choice for germ warfare.
It is very easy to weaponize and almost always deadly. At least 10 potential adversaries have worked to develop the offensive use of anthrax against U.S. forces. The anthrax vaccine now being administered to U.S. servicemen and servicewomen has been licensed by the Food and Drug Administration for nearly 30 years and is highly effective. There are no known long-term side effects from the anthrax vaccine. The use of the anthrax vaccine has been endorsed by the Centers for Disease Control and Prevention, the World Health Organization and the Institute of Medicine.