Nuclear insanity to the nth degree

The U.S. is set to spend billions on refurbishing the B-61 gravity nuclear bomb, the kind of thing Slim Pickens rode in the closing frames of Dr. Strangelove. Would that this were only a movie. A WaPo editorial observes that about half of the refurbished B-61s would replace ones that are currently deployed as 'tactical' weapons in Europe. The U.S. nuclear arsenal as a whole has to be maintained, I suppose, in some reasonable state of non-decrepitude but the notion of spending billions of dollars to refurbish tactical nuclear weapons in Europe is insane.

(note: edited slightly after first posting)