Doomsday on Wheels?

The article discusses an atomic artillery cannon developed by the U.S. Army during the mid-20th century. According to the article, the cannon, nicknamed "Atomic Annie," was tested at Camp Desert Rock in Nevada on May 25, 1953. The article discusses the threat of an invasion of western Europe by the Soviet Union during the early Cold War, describes the design of the atomic cannon, and discusses the role of designer Robert Schwartz in the development of the cannon and ammunition.