The Manhattan Project--the World War II race to produce an atomic bomb--transformed the entire country in myriad ways, but it did not affect each region equally. Acting on an enduring perception of the American West as an "empty" place, the U.S. government located a disproportionate number of nuclear facilities--particularly the ones most likely to spread pollution--in western states. The Manhattan Project manufactured plutonium at Hanford, Washington; designed and assembled bombs at Los Alamos, New Mexico; and detonated the world's first atomic bomb at Alamagordo, New Mexico, on June 16,...

The Manhattan Project--the World War II race to produce an atomic bomb--transformed the entire country in myriad ways, but it did not affect each region equally. Acting on an enduring perception of the American West as an "empty" place, the U.S. government located a disproportionate number of nuclear facilities--particularly the ones most likely to spread pollution--in western states. The Manhattan Project manufactured plutonium at Hanford, Washington; designed and assembled bombs at Los Alamos, New Mexico; and detonated the world's first atomic bomb at Alamagordo, New Mexico, on June 16,...