In fact , Japan 's nuclear safety agency has now raised the crisis to level 5 on the nuclear event scale . We are hard-wired to react with fear to what we do n't understand , Grant says . Expert says there is a fear overload and a shortage of fact . Officials in Japan have told people that radiation levels pose no risk to health . Comment:
We are hard-wired to react with fear to what we do n't understand , Grant says . Expert says there is a fear overload and a shortage of fact . Officials in Japan have told people that radiation levels pose no risk to health . Comment: