核弹的威力如同末日降临，毁灭与希望在一瞬间交替。三种人不宜吃氨糖

　　See how America developed the most destructive invention in human history - the nuclear bomb - how it changed the world and how it continues to loom large in our lives. Hear from historians and those who experienced the dawn of the atomic age. 　　- Written by PBS