Nuclear reactors cannot explode. It is not physically possible. It isn't even close to physically possible. Reactor-grade uranium is about 5% U235 while you need >90% to make something that can explode.

May as well ask why we use wind turbines when they might take off and start dropping napalm.

> Nuclear reactors cannot explode. It is not physically possible. It isn't even close to physically possible.

They can and they do (see: Chernobyl, Fukushima). But it's not a nuclear explosion (as you say, it's not possible with their fuel enrichment and geometry); it's a steam or hydrogen explosion.

Lots of things can go wrong and I certainly don't intend to downplay the risks. Mismanagement like at Fukushima or Chernobyl can do a lot of harm.

But there are a lot of people who think a nuclear reactor can level a city, which is totally impossible.

Can you provide more info around nuclear fuel running out in 100 years? I had been thinking we had an abundance of nuclear fuel available tIo us. I have not heard of a 100 year limit before and am interested to learn more.