的美国海军有自己的名称“没收,盗窃或损失的核武器或组件”——这就是所谓的“断箭”。(Anyone who's seen the 1996 John Woo movie "Broken Arrow," starring John Travolta, might already know this.) You might notice that the Navy's definition mentions both a nuclear weapon and a component of a nuclear weapon. Why is it important enough to draw a distinction between the parts of a bomb and the whole?