Rynar wrote:
What if we were to design something with about 1/10 the yield of the W54, that was the rough equivalent of 1 ton of TNT?
I do not know if that is physically possible. To the best of my understanding, there is a lower limit for the yield that can be produced from a nuclear explosion; as it was the W-54 was horrendously inefficient in terms of mass-to-weight, and such inefficiency might, below a certain design yield, reach the point where a sufficient chain reaction for a nuclear explosion simply might not be made to happen. I'm not a physicist so I really can't answer that issue any better than that but maybe Rafael or Arathain could give you a better answer.
However, lets assume it could be done.
In and of itself, this would not be problematic; 1 ton is simply a relatively large aircraft bomb. Radiation complicates things a bit, but lets leave that aside. All you would have is a horrendously expensive and complicated 2000-pound-equivalent bomb.
That, however, does not change the fact that this baby nuclear weapon remains a strategic weapon because it represents the ability to create much larger ones, and larger ones that would be vastly more efficient and cheaper in a yield-to-cost ratio simply because of the realities of physics. Similarly, the 2000-pound HE bomb is not strategic because much larger yields are directly proportional to much larger weights, and of course before long the HE bomb is far too heavy to actually use. The nuke has the opposite phenomenon until you get a a yield of around 6 megatons per metric ton of bomb which is, to my knowledge, the upper practical efficiency limit. Or, to put it another way, our fictional 1-ton nuke has a yield 1/475,000 of the W88 warhead but clearly the W-88 does not weigh 475,000 times more than it, or 47,500 times more than the W54.
In other words, the weapon is different in nature, and simply drawing an arbitrary line at a certain yield still creates all the strategic problems with other countries that a much larger weapon would. If private citizens have access to complicated, purposefully-inefficient 1-ton weapons, they easily have access to weapons up into the low hundreds of kilotons without even needing fusion weapons. This is a strategic threat, both to the other citizens of the country they inhabit but to every other country. I would not think it an exaggeration to say that other nuclear powers would expand their arsenals and would be far more likely to strike first now that they simply do not know who controls what in this country.
The 2nd amendment does not cover weapons like this in any way. It can't; they have no equivalent at the time and could not possibly have been a serious consideration in wording it. I find it hard to believe that more than maybe one or two of them could have even wrapped their minds around the concept, starting as they were from an 18th century knowledge base.