Why USA didnt keep the proccess of creating an atomic bomb secret?

Why USA didnt keep the proccess of creating an atomic bomb secret? I am guessing because this science involves other entities that relate to something else like finance. (Answer requested by Muirch Nechi) The day Einstein wrote that mass and energy are the same; that each body has a total energy - irrespective of its … Continue reading Why USA didnt keep the proccess of creating an atomic bomb secret?