WASHINGTON - The top US nuclearregulator told Congress on Wednesday that radiation levels
around Japan's troubled nuclear power plant may give emergencyworkers "lethal doses" of radiation, preventing them fromgetting near the plant."We believe that around the reactor site there are highlevels of radiation," Gregory Jaczko, head of the NuclearRegulatory Commission, told a House Energy and Commercesubcommittee hearing. "It would be very difficult for emergencyworkers to get near the reactors. The doses they couldexperience would potentially be lethal doses in a very shortperiod of time."Jaczko noted the NRC had very limited data on what wasgoing on in Japan and he did not want to speculate too much onthe matter. "Our information is very limited," he said