The article said:

As well known, the DPRK conducted the nuclear warhead explosion test.

It can be said that the test was a countermeasure to the U.S. hostile policy toward the DPRK. In a nutshell, it is part of the DPRK's self-defensive steps to cope with the U.S. nuclear threat.

Looking back on, the U.S. has steadily threatened the DPRK with nukes.

One should pay heed to the fact that the DPRK has made every possible effort to achieve peace.

Last year, too, the DPRK made a realistic proposal to replace the Armistice Agreement with a peace treaty to defuse tensions and create a peaceful environment on the Korean peninsula.

However, the U.S. has resorted to all kinds of economic sanctions and conspiratorial "human rights" racket against the DPRK by rallying followers and, at same time, left no stone untried to stifle it at any cost while staging massive nuclear war maneuvers including Key Resolve and Ulji Freedom Guardian.

In order to protect itself from the ever-increasing U.S. nuclear blackmail, the DPRK conducted the nuclear warhead explosion test this time in the wake of its successful first H-bomb test in January this year.

This is the legitimate independent right of a sovereign state and its just self-defensive step no one can slander.