With all respects, you have obviously failed to read the full content of the link, this may help: In other words, there is at present a refurbishment program going on concerning the non-nuclear parts of the weapons. The Reliable Replacement Warhead (RRW) program will be more concerned with th enuclear warhead itself. I may have got it wrong, but that is my understanding of the whole topic.
But Spec commented on the fact that the weapons as a whole are growing old, and therefore need updating. He did not refer to the nuclear payload specifically, which is only a small part of the picture. as for the RRW programme, its aim is to: I think the concern about the degradation of Plutonium is only a small part of that.
