The Fukushima No. 1 plant worst-case fallout scenario drawn up by Japan Atomic Energy Commission Chairman Shunsuke Kondo last March 25 assumed winds would carry the radioactive materials to Tokyo, forcing the government to help people "migrate" from the capital.
But Kondo told The Japan Times last month this simulated contamination scenario was an unrealistic overstatement and steps had been taken to prevent the crisis from escalating to such proportions.
"The scenario is total fiction, but we thought about what we might have had to do to prevent an escalation," Kondo said.