Example image of eyePlorer eyePlorer map for 'Nuclear weapons and the United States': Atomic bombings of Hiroshima and Nagasaki Hiroshima Nagasaki Nuclear weapon United States World War II Cold War Nuclear weapons testing Environmental remediation Nuclear weapon design Franklin D. Roosevelt Nazi Germany President of the United States Manhattan Project National Institute of Standards and Technology Office of Scientific Research and Development United Kingdom United States Army General (United States) Leslie Groves Enriched uranium Hanford Site J. Robert Oppenheimer Los Alamos National Laboratory New Mexico Oak Ridge National Laboratory Tennessee Washington Nuclear reactor technology Uranium-235 TNT equivalent Trinity (nuclear test) Fat Man Harry S. Truman Japan Little Boy Cancer Radiation poisoning B41 nuclear bomb Davy Crockett (nuclear device) Radioactive waste Bill Clinton Soviet Union Stockpile stewardship Nuclear proliferation Russia Alaska Colorado Mississippi Nevada