Operation Polka Dot
Operation Polka Dot was a U.S. Army test of a biological cluster bomb during the early 1950s.
Operation Polka Dot was a field test of the E133 cluster bomb undertaken at Dugway Proving Ground in Utah during the early 1950s. The operation was detailed in a July 18, 1955 U.S. Army report that also detailed Operation Trouble Maker. The operation was classified "secret" and involved filling the munitions with the biological agent simulant, Bacillus globigii.
- U.S. National Research Council, Subcommittee on Zinc Cadmium Sulfide. Toxicologic Assessment of the Army's Zinc Cadmium Sulfide Dispersion, (Google Books), National Academies Press, 1997, pp. 44-52, (ISBN 0309057833).
- Committee on Foreign Affairs, Subcommittee on National Security Policy and Scientific Developments. "U.S. Chemical Warfare Policy", (Google Books), 93rd U.S. Congress - 2nd Session, U.S. Government Printing Office, 1974, p. 340.