Neils+Bohr

Please Be mindful as this again was witten as an informal speach, so ignore the non formal aspect of it.  Let's take a moment to list some of Bohr's key points from 1944: Bohr lived in Copenhagen, Denmark, where he founded the Institute for Theoretical Physics in 1921 (now known as the Niels Bohr Institute). For many years he had been one of the most respected physicists in the world, and he had won the Nobel Prize in physics in 1922 for his work on the structure of the atom. Bohr became one of the key fission researchers, determining in 1939 that the rare U-235 isotope was the isotope that made uranium fissionable and which made a chain reaction theoretically possible. But because U-235 comprised less than 1% of uranium and was so difficult to separate from the rest of the uranium, he felt an atomic bomb could not be made in the near future. "It would take the entire efforts of a country to make a bomb", Even Bohr could not have known that something like that would soon occur. In April of 1940 the Nazis occupied Denmark. This put Bohr at great risk, for although he was not a religious man, his mother was Jewish. In spite of the danger, he turned down offers to live safely in other countries.
 *  Russia probably already knew about the Manhattan Project.
 *  Russia should be told soon that the west was working on the atomic bomb. The longer the west hid their a-bomb work from Russia, the more it would appear to Russia that the west intended to threaten them with the weapon.
 *  If Russia felt threatened by the atomic bomb, they would hurry to build their own. The result would be the "terrifying prospect" of a nuclear arms race.
 *  A nuclear arms race combined with fear and suspicion could lead to a disastrous nuclear war.
 *  But the nuclear threat could be turned into a blessing: the need to prevent nuclear war could provide the basis for nations to overcome their differences and work together in the post-WWII world.