I don't see how selection bias enters into it, when no matter what selection method we use, the rate of accidental detonations remains zero. I don't doubt that

I don't see how selection bias enters into it, when no matter what selection method we use, the rate of accidental detonations remains zero. I don't doubt that that will eventually change, but even a large industrial accident is hardly the end of the world. As for US-centricity, well, that's where I live, and as cold as this no doubt will sound to a universalist, I really don't see another nation's accidental nuclear detonation as being my problem; contrary to popular belief, the mechanisms involved in commencing nuclear warfare are a little more nuanced than "oh, hey, a nuke went off somewhere on the planet? Empty the silos! Tell the subs to flush their tubes!"