The challenge for science is to continue the development of tasks and tools that can serve as instruments of peace. REFERENCES I. W. Morris, Ed., The American Heritage Dictionary of the English Language (Houghton-Mifflin, Boston, 1978), p. 833. 2. K. J. Bart et at, WHO 74, 35 (1996). 3. Anonymous, Wkly Epidemiot Rec. 71,