Wayne, I know it was tongue-in-cheek. I just wanted to show how I see the whole picture. ( now that is a joke for sure)
Don' take things I say too serious, I don't. Sometime I throw comments out just to provoke others to think and maybe add their own thoughts.
About the radio-active dust cloud, I don't know! I've been told the ash from Mt St. Helen Circled the earth 3 times. I don't know about that either.