If Bi De turned to demonic cultivation how could it happen and what would be his powers?

The material in the nukes has a half-life, if that degrades too much then you can't have a proper nuclear explosion.

So nukes have literal timers and best-by dates if left as is.

So at best, if Russia did no maintenance, they have dirty bombs instead of proper nukes.

Can someone say if they can actually inspect that part of the nukes?

Yeah, Liam Neeson is great at improv.

https://www.youtube.com/watch?v=huJ81Mq2y34

What's the going rate for copium?