"As the following animation from ZAMG demonstrates, courtesy of Northeastern winds, a major cloud of radioactive Iodine 131 is currently passing right over South Korea."

As Radioactive Iodine Cloud Passes Over Korea, Government Downplays Risks
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Reuters: "Japan No 2 core melted through reactor vessel: Rep. Markey"

"Radioactive Fallout Expected in Korea Thursday"



"U.S. Sees Array of New Threats at Japan’s Nuclear Plant"
 
Fukushima Daiichi nuclear power plant: "Plant radiation monitor says levels immeasurable"