https://www.nytimes.com/2018/11/12/us/politics/north-korea-missile-bases.html

The art of the deal:

«American intelligence officials say that the North’s production of nuclear material, of new nuclear weapons and of missiles that can be placed on mobile launchers and hidden in mountains at the secret bases has continued.

And the sanctions are collapsing, in part because North Korea has leveraged its new, softer-sounding relationship with Washington, and its stated commitment to eventual denuclearization, to resume trade with Russia and China.»