If you are a peace-minded citizen and especially if you are a resident of the U.S., here are the A B C's of nuclear energy: what it is, how it is released and made usable, where it goes today and where it may go tomorrow- in agriculture, industry, medicine. If you are concerned over America's official position in the development of atomic energy for peaceful purposes and the sharing of knowledge and nuclear fuel with the world at large -- here are specific, intelligible answers.