Atomic bomb History 2 Biography 1 Decision making 1 Denuclearization 1 East west relations 1 Foreign relations 1 HISTORY / United States / 20th Century 1 International relations 1 Juvenile literature 1 Military leadership 1 Military policy 1 Moral and ethical aspects 1 Nuclear issue 1 Nuclear nonproliferation 1 Nuclear problem 1 Nuclear weapons 1 Physicists 1 Risky equation 1