Russia/Ukraine/ex-USSR
The former Soviet Union was rocked by one of the world's worst environmental disasters on April 26, 1986, when Unit 4 at the Chernobyl reactor site exploded, sending a radioactive plume across the world. The former Soviet Union is still also the site of some of the world's worst radioactive contamination from its nuclear weapons program.
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Over 25 years since it exploded and caught fire, the Australian television program Sixty Minutes on June 6, 2011 revisited the Chernobyl nuclear power plant in Ukraine to learn the lessons about radioactivity's hazards for application in Japan, downwind and downstream of the Fukushima Daiichi nuclear catastrophe.
June 25, 2011