This is what the Soviets did in 1986, calling out the Red Air Force and sandbagging the reactor with over 5,000 tons of concrete and sand.
Friday, March 18, 2011
Reuters: Japanese engineers considering "Chernobyl Option" as last resort
Today Reuters reported that Japanese engineers are considering the "Chernobyl Option" as a last resort. This option, suggested by Japanese American physicist Michio Kaku, would involve burying the nuclear facility in sand and concrete to prevent a catastrophic radiation release: