It is none other than the U.S. which compelled the DPRK to have nuclear deterrence, the article notes, explaining the reason to say so. It goes on:

The DPRK's access to nukes put an end to the nuclear imbalance in Northeast Asia and remarkably decreased the danger of war on the Korean peninsula.

The U.S., however, claims that the situation got strained on the Korean peninsula due to the DPRK's access to nukes and it was compelled to pursue a hostile policy toward the latter. This is, indeed, a brigandish assertion which reminds one of a guilty party filing the suit first.

It is nothing but a petty trick U.S. has employed to justify its hostile policy toward the DPRK, stoke a global atmosphere of pressure upon the latter and thus stifle it.

The U.S. behavior goes to clearly prove that it remains unchanged in its hostile policy toward the DPRK but has become evermore undisguised.

Now that the U.S. is desperately pursuing its hostile policy toward the DPRK, blaming it for its access to nukes through the profound confusing of the right and wrong, clear is its principled stand on its access to the nuclear deterrence.

As nukes of the DPRK serve as its all-powerful treasured sword for protecting the sovereignty and security of the country, no one is entitled to blame it for them as long as the U.S. nuclear threat against it and hostile policy toward it persist.