The biological warfare (BW) capabilities of state and nonstate actors are growing worldwide. This trend leads us to believe that the risk of an attack against the United States, its interests and allies will increase in the corning years. In addition, the United States would be affected by the use of BW agents anywhere in the world a strong possibility in the years ahead. Washington probably would be called upon to help contain conflicts or deal wit.h a terrorist attack in which
biological agents were used–either overtly or covertly-or to provide scientific expertise and humanitarian assistance to deal with their effects.