What are you talking about? Nuclear fuel used in a hydrogen bomb, or nuclear fuel rods used in electrical power reactors? Look, it is scary shit, but this crap about everybody in the western third of the U.S. receiving irradiated fallout significant enough to cause death is not very likely at all. A nuclear explosion, like in an atomic bomb or a hydrogen bomb is completely different than the fission chain reaction that happens in a reactor, as is the actual fuel itself. It's virtually impossible for nulcear fuel rods to go critical in a meltdown. You cannot have a nuclear explosion as a result of this, therefore you won't have tons of debris sucked up and scattered like you would in a thermonuclear explosion. There will be and has been a lot of radiation localized. Some irradiated particulate and dust (this is essentially fallout) will get blown around and will make it to North America, but it will be dilluted by then and shouldn't be significant to cause health issues. Again, nobody really knows what the longterm consequences could be and that is the really scary part IMO.
i'm not worried about a nuclear fallout killing everybody.
i'm worried about the effect it'll have on this planet
nuclear material is not NATURAL. it's MAN-MADE ENRICHED NUCLEAR MATERIAL. it exists in nature very sparsely, and not irradiated to the unnatural levels nuclear fuel is.
it takes thousands of years for this stuff to degrade, that's why they test nuclear bombs in the middle of nowhere. this stuff reaches the ocean, forests, reefs, even in small amounts, it'll remain in the ecosystem for thousands of years, IT DOESN'T BREAK DOWN. let me say it again IT DOESN'T BREAK DOWN.
it'll keep making animals and micro-organisms sick for unforseeable amounts of time...
it's not oil, it's not even as bad as plastic, styrofoam would blush in the face of nuclear fallout.....