One Administration expert said a relatively inexperienced nuclear nation would need at least about 12 pounds for a bomb.

The technology is the envy of the nuclear nations of the world.

Based on the success of the test, the Soviets joined other nuclear nations four months later in doing underground tests only.

At the time, it was the nation's third nuclear generating plant.

If Wyoming, the nation's least populous state, were an independent country, it would be one of the world's most powerful nuclear nations.

If you where Chinese would you want to be surrounded by 4 nuclear armed nations?

Another group of countries includes established nuclear nations such as China and Russia.

Relations between the two nuclear nations have been at a low since the attacks in which 174 people died, including 9 gunmen.

And some advanced nuclear nations, like Britain, have learned how to keep the rods in ponds for years.

With the tests, India proclaimed itself a nuclear nation.