*In late summer of 1949, on 29 August the Soviet atomic bomb project was revealed when it exploded a replica of [[Fat Man]]; the [[Soviet Union]] had gained nuclear technology by espionage from the United States, which spent $4 billion dollars (about $48 billion in today's dollars) to develop during World War II. | *In late summer of 1949, on 29 August the Soviet atomic bomb project was revealed when it exploded a replica of [[Fat Man]]; the [[Soviet Union]] had gained nuclear technology by espionage from the United States, which spent $4 billion dollars (about $48 billion in today's dollars) to develop during World War II. |