When a plane crashes, there's a fireball, there's a mess, and then it goes away.
When a nuclear reactor burns, there's a mess, and then it stays there basically forvever.
I'll give you $10,000 to spend 1 month on the site where the Chernobyl reactor was.
That kind of permanent destruction - the lethality that just does not fade - is unlike anything else man has created.
And while burning cola releases some radiation, it's not the high rad/hard hitting stuff we get from a water cooled fission reactor.
Helium Cooled pebblebed reactors? Well now you're making sense.