Sometimes, in complex military calculations, truth is counter-intuitive.
In essence, the persuasiveness of Israel’s nuclear deterrent vis-à-vis Iran will require prospective enemy perceptions of retaliatory destructiveness at both the low and high ends of the nuclear yield spectrum. Ending nuclear ambiguity at the optimal time could best allow Israel to foster precisely such needed perceptions. This point is very important and possibly overriding.
A writer of non-fiction for the general community has to know the topic well; a writer for the observant Jewish community has an additional requirement – to understand that Jewish law, halacha, informs our decisions and actions.