• Madison420@lemmy.world
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      7 months ago

      Correct, Truman was not allowed to know about the Manhattan project until it was already viable and needed to be known.

      • diverging
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        7 months ago

        Truman became president on April,12 1945. He was given a full briefing on the Manhattan project on April 24,1945. That doesn’t seem like he was being kept in the dark.

        • Madison420@lemmy.world
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          7 months ago

          It was one of the most important and costly projects of the war, 12 days is a lifetime during a war quite literally. That’s also ignoring the fact that the vice president was kept in the dark until after FDR died and Truman took office.

            • Madison420@lemmy.world
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              7 months ago

              That’s dated April 24.

              It’s not, the administration by in large knew FDR was dying and would likely die before leaving office. Truman effectively was a president in waiting rather than a vice president.

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                7 months ago

                “I mentioned it to you shortly after you took office …”

                • Madison420@lemmy.world
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                  7 months ago

                  Yes that he needed to speak about something important. Draw your own implication but it doesn’t actually say what your implying it says.

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                    7 months ago

                    The night Truman was sworn in as Roosevelt’s successor he noted in his diary that Stimson told him the U.S. was “perfecting an explosive great enough to destroy the whole world.”

                    And if you wanted to know what Truman thought of not being told as vice president. (from the same link)

                    On June 17, Truman received a phone call from Stimson, who told him that the Pasco plant was “part of a very important secret development.” Fortunately, Stimson did not need to explain further: Truman, a veteran and a patriot, understood immediately that he was treading on dangerous ground. Before Stimson could continue, Truman assured the secretary “you won t have to say another word to me. Whenever you say that [something is highly secret] to me that’s all I want to hear. If [the plant] is for a specific purpose and you think it’s all right, that’s all I need to know.” Stimson replied that the purpose was not only secret, but “unique.”