There is nothing in my statement, either explicit or implicit, that said don't update with proven technologies well known since 1945. Who knows, perhaps some day we will regain the balls that President Truman had the last time they were used on our enemies.
"As a signatory to the Nuclear Nonproliferation Treaty, the United States and other nuclear weapons states have committed, at least on paper, to the ultimate goal of “the liquidation of all their existing stockpiles” of weapons. But General Cartwright cautioned that much of the criticism of the program was cast in terms of achieving that disarmament, and he said the government’s policy, and that of the new warhead program, was to maintain a nuclear stockpile “that would be the smallest practical to maintain its credibility.”
"He described the nation’s nuclear weapons stockpile as “an artifact of the cold war — both in its delivery systems and its characteristics and certainly in its technology.”
“We stopped testing a while back. So, from the testing standpoint, we have not been fielding new weapons,” General Cartwright said. “From the standpoint of engineering and design, there has been only marginal activity, mostly reacting to the age of components.”
You are talking through your hat when it comes to nuclear technology. It has certainly evolved since 1945. Warhead design, yeild, etc. have changed so we could use them in our strategic triad.