Today, when a major weapons system commonly takes decades or more to de- velop, it is hard to imagine that the greatest weapon system of them all, the Manhattan Project, took just three years from start to detonation over Ja- pan. Those three years were the stuff of high technical and engineering drama: vast new industrial facilities were con- structed in secret across the United States, two billion dollars were spent without congressional oversight, new scientific laboratories were secluded in the high desert, and a unique U.S.
Mahncke, Frank C.
"Racing for the Bomb: General Leslie Groves, the Manhattan Project’sIndispensable Man,"
Naval War College Review: Vol. 56
, Article 23.
Available at: https://digital-commons.usnwc.edu/nwc-review/vol56/iss1/23