[m4rtink]

It basically impossible the lost bombs from old broken arows woild detonate i nuclear way (the conventional explosive might still explode and contaminate a small area).

Even if you discount machinery still working after being embedded in the ground or unde water any neutron initiators or bateries would have lomg sonce became unusable.

[hedora]

There’s a huge risk of abandoned nuclear weapons self detonating. Russian ICBMs (used to?) have safeties that failed “deadly”. They had to run around and turn them off during the 90’s so they didn’t self-deploy. That was a huge problem because they had lost track of some of them.

Also, the soviet’s “Dead Hand” is still active.

It is a dead man’a switch that’s designed to automatically destroy the world if it detects the initial phase of a nuclear war. It could easily fail in a way that caused a false positive.

https://en.m.wikipedia.org/wiki/Dead_Hand

I’m sure other countries have equally problematic aging arsenals.