There's an interesting follow-up to the Smyth Report. My father, Bernard Goodman, was then a graduate student and the youngest member of a group of physicists from the University of Pennsylvania who were curious to understand the physics details behind the Smyth Report. The group, led by assistant professor William Stephens, had been part of the wartime efforts to develop radar and sonar, but not the bomb. They held a series of seminars and compiled their notes into a book length manuscript titled Nuclear Fission and Atomic Energy. They submitted it for publication in 1946, but security concerns delayed its publication until 1948. While they were not censored, the authors were persuaded to drop the discussion of implosion, which was at the time considered one of the most sensitive secrets of the Manhattan Project. You can find the full published version online and an article about it in the May 2012 issue of Physics Today.
There's an interesting follow-up to the Smyth Report. My father, Bernard Goodman, was then a graduate student and the youngest member of a group of physicists from the University of Pennsylvania who were curious to understand the physics details behind the Smyth Report. The group, led by assistant professor William Stephens, had been part of the wartime efforts to develop radar and sonar, but not the bomb. They held a series of seminars and compiled their notes into a book length manuscript titled Nuclear Fission and Atomic Energy. They submitted it for publication in 1946, but security concerns delayed its publication until 1948. While they were not censored, the authors were persuaded to drop the discussion of implosion, which was at the time considered one of the most sensitive secrets of the Manhattan Project. You can find the full published version online and an article about it in the May 2012 issue of Physics Today.