The U.S. is stockpiling smallpox drugs in case of a biological attack

The U.S. is stockpiling smallpox drugs in case of a biological attack: "While smallpox has been eradicated in the wild, samples of the deadly virus still exist in the United States and Russia. Some biodefense experts fear that the continued existence of smallpox leaves the world open to a bioterrorist smallpox attack. To contain a possible smallpox outbreak, the U.S. government has authorized a controversial purchase of a drug to treat smallpox, to the tune of $463 million."