Copyright 2002 Nuclear Age
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The Roosevelt-Churchill "Tube Alloys" Deal September 19, 1944
1. The suggestion that the world should be informed regarding tube alloys, with a view to an international agreement regarding its control and use, is not accepted. The matter should continue to be regarded as of the utmost secrecy; but when a "bomb" is finally available, it might perhaps, after mature consideration, be used against the Japanese, who should be warned that this bombardment will be repeated until they surrender.
2. Full collaboration between the United States and the British Government in developing tube alloys for military and commercial purposes should continue after the defeat of Japan unless and until terminated by joint agreement.
should be made regarding the activities of Professor Bohr and steps taken to
ensure that he is responsible for no leakage of information particularly to