Japan 's nuclear emergency agency went further in assessing the extent of damage . That compounded a natural disaster by spewing radioactive material into the atmosphere . The Fukushima Daiichi plant was badly affected by an earthquake and tsunami in March . Tokyo Electric Power Co. has avoided calling the accident a disaster .
Japan 's nuclear emergency agency went further in assessing the extent of damage . The Fukushima Daiichi plant was badly affected by an earthquake and tsunami in March . Tokyo Electric Power Co. has avoided calling the accident a disaster .