the absence of radioactive iodine in the en- vironment surrounding the stricken nuclear plant. Previous meltdown models predicted the formation of an iodine vapor cloud, which is po- tentially fatal and difficult to contain. However, as Norman notes, "it is now widely accepted within the nuclear research community that the chemistry underlying the earlier predictions was faulty."
Studies of TMI the American Nuclear Society (ANS), the Industry Degraded Core Rule-making Program (IDCOR),...