Hi. Treaties can always be modified. Disbanding CTBTO ( https://en.wikipedia.org/wiki/... ) would be a good start; but I mentioned this is just my 'dream', I realize it might not be possible during my lifetime. You cannot deny it would be quite an experience however? As for fallout, how did they manage to perform thousands of detonations? There are mitigation measures that can be put in place to reduce side effects. There are different kinds of devices that may be "cleaner" than others, etc.