The document was brief—a single typed page—describing an explosion, the collapse of the roof of the reactor hall, and a fire, which had already been completely extinguished. Thirty-four people involved in the firefighting were being examined in the hospital; nine had suffered thermal burns of varying degrees, and three were in critical condition. One man was missing, and another had died. There was no mention of any radiation injuries. The document stated that levels of radiation near Unit Four had reached 1,000 microroentgen per second—a tolerable 3.6 r/hr. But it failed to explain that this
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