And testing has ended ? in the atmosphere and below the ground.
All-out nuclear war, while still possible, is no longer regarded as inevitable. Stockpiles of nuclear weapons are shrinking.
The clouds that looked like gigantic mushrooms rising into the stratosphere remind us of the Cold War-era American-Soviet race to test and manufacture as many nuclear weapons as possible to fight what many felt would be an inevitable nuclear war. The atom bomb tests over the Nevada desert are etched in the American consciousness, even though they ended nearly half a century ago.