GfS-

"Do you think that more radiation leaked from the nuclear plants, than was blown into the air from Hiroshima and Nagasaki?..and that drifted to the Left Coast?..and which was 'dirtier'?"

There was considerably more worldwide fall out from the atomic bombing of Hiroshima and Nagasaki, and some different radioactive products such as Strontium-90, than say from the Chernobyl meltdown, explosion and resultant fire. The current event in Japan is incomplete.

I'm not sure what "dirtier" means in this context other than bad news for those downwind.

Charley Noble