Why are nukes a thing of the past?

[vicky_molokh]

Greetings, all!

I've noticed that nukes, both as the strategic WMD, and as a terrorist device in the face of miniaturisation and easier production processes affordable at TL10, are not a thing that gets any sort of attention. I've seen a couple of phrases along the lines that 'nuclear apocalypse did not arrive', but I'm more interested, what is the cause of that? I'm particularly interested why nukes are no longer a factor as a terror weapon used by organisations and régimes that are not above ignoring the principles of common sapient international decency? Maybe I'm missing some some entry here or there that would explain it.

Thanks in advance!