Rodong Sinmun Friday says this in a bylined article.

The March, 2013 plenary meeting of the C.C., the Workers' Party of Korea laid down a strategic line on simultaneously pushing forward economic construction and building of nuclear force. The line serves as a great banner for defending the peace and security on the Korean Peninsula and paving a wide avenue for national prosperity.

It is the consistent and unshakable line of the WPK and the government of the DPRK to secure and bolster up powerful nuclear deterrent for self-defence as long as the imperialists' nuclear threat persists and there remains the danger of a nuclear war to it.

The U.S. and the puppet forces do not abandon their scenario to invade the DPRK even a bit. It is, therefore, nothing but a crafty artifice to let loose rhetoric that they would do something for the DPRK if it dismantles its nukes.

They paint the DPRK's access to nuclear weapons as something for a political bargain. This reveals their sinister ploy to label the DPRK a nuclear criminal in a bid to shift the blame for the strained situation onto it and justify their moves for invading it.

Their assertion is part of their moves for a nuclear war against the DPRK and represents its height.

Now that they are working hard to ignite a nuclear war against the DPRK, its option is clear. It is left with no option but to bolster up its war deterrent for self-defense centered on nuclear force in every way.

The DPRK's nuclear weapons are not something for bargaining.

It will produce more precision and diverse nuclear weapons to bolster up its nuclear deterrent. It will never put down its nuclear weapons till the whole world is denuclearized.