According to Wikipedia, the U.S. and U.S.S.R. combined have conducted 1769 nuclear weapons tests, which included 435 were either underwater, atmospheric, or space tests. Another 310 tests have been conducted by other known nuclear nations and maybe N. Korea.
By these loons ‘reasoning” we should have all died horrible deaths years ago.
ummm...10,000 years from now, Fukishima Daiichi will still be pouring Radioactivity into the Pacific ocean. I believe the 1/2 life of plutonium is around 230,000 years.