Scientists Warn of Extreme Risk November 8, 2013 by WashingtonsBlog Wahington"... the greatest short-term threat to humanity is from the fuel pools at Fukushima." Experts around the world have warned … that the fuel pool is in a precarious state – vulnerable to collapsing in another big earthquake. Yale University professor Charles Perrow wrote about the number 4 fuel pool this year in the Bulletin of Atomic Scientists. “This has me very scared,” he told the ABC. “Tokyo would have to be evacuated because [the] caesium and other poisons that are there will spread very rapidly.