It should come as no surprise that the world is currently facing an existential nuclear danger. In fact, it has been caught up in that danger since 1945, when atomic bombs were used to annihilate the populations of Hiroshima and Nagasaki.
Today, however, the danger of a nuclear holocaust is probably greater than in the past. There are now nine nuclear powers―the United States, Russia, Britain, France, China, Israel, India, Pakistan, and North Korea―and they are currently engaged