The actual steel container holding the core has been destroyed. This just went from "godawful" to "total crap on toast."TOKYO — Japan’s nuclear crisis verged toward catastrophe on Tuesday after an explosion damaged the vessel containing the nuclear core at one reactor and a fire at another spewed large amounts of radioactive material into the air, according to the statements of Japanese government and industry officials. In a brief address to the nation at 11 a.m. Tokyo time, Prime Minister Naoto Kan pleaded for calm, but warned that radiation had already spread from the crippled reactors and there was “a very high risk” of further leakage. Fortunately, the prevailing winds were sweeping most of the plume of radioactivity out into the Pacific Ocean, rather than over populated areas.
Time to get potassium iodide, since this stuff is getting into the air and we're all in it now.If there is heavy melting inside the reactor, large amounts of radiation will most definitely be released.”