foto chernobyl – 5

FILE – This Nov. 10, 2000 file picture shows solidified foam and piles of lead and boron powder, dropped by helicopters in an attempt to suppress the nuclear reaction, at the Chernobyl, Ukraine nuclear power plant. The idea of smothering and sealing Japan’s overheated nuclear reactors in sand or concrete to stop the crisis is appealing. But experts say that it’s too early for something that desperate and that it could be a big mistake that could make matters worse. Alex Sich, a nuclear engineer at Franciscan University in Ohio, who has lived in Chernobyl and published research on the disaster there, noted that Russian authorities dumped some 5,000 tons of sand, clay and other materials from helicopters in an attempt to smother that dangerous reactor. But the Japanese situation is different, he said. (AP Photo/Efrem Lukatsky)

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