Minju Joson Tuesday says in a bylined commentary in this regard:

This is clear evidence that the U.S. has attempted to update nuclear weapons and use them.

What merits a serious attention is that the present U.S. administration's policy of nuclear weapons is quite contrary to its call for realizing a "world without nuclear weapons".

It is not hard to guess what stand the U.S. administration has toward nuclear weapons, taking it into consideration that frequent nuclear tests usually lead to updating nuclear weapons.

It is the U.S. strategic attempt to contain strategic competitors and potential rivals with a nuclear stick, hold hegemony in the military field and, on its basis, establish the sphere of domination over the world. That is why the U.S. is investing a huge amount of money in updating and maintaining nuclear weapons, and is frequently conducting nuclear tests though it holds the greatest number of nuclear warheads and carrier means in the world.

What should not be overlooked is that its ambitious nuclear policy is bringing the era of worldwide arms race.

The world experienced the bitterness of the nuclear arms race during the Cold War.

The U.S. had better stop the deceptive ballad of a "world without nuclear weapons" which can convince no one and abandon its criminal nuclear ambition at once.