Hello TLR!
The destruction of one cooling tower (as you know) hardly means that North Korea intends to give up their nuke program although you never know: it might be enough to get the Dear Leader an invite to Crawford Texas.
Don't know if you've seen this map, it demonstrates what we all know, that Comrade Chia Pet has plenty more where Yongbyon came from:
[w/thanks and appreciation and full credit to www.fas.org]