The top U.S. nuclear regulator told Congress on Wednesday that radiation levels around Japan's troubled nuclear power plant may give emergency workers "lethal doses" of radiation, preventing them from getting near the plant.
"We believe that around the reactor site there are high levels of radiation," Gregory Jaczko, head of the Nuclear Regulatory Commission, told a House Energy and Commerce subcommittee hearing. "It would be very difficult for emergency workers to get near the reactors. The doses they could experience would potentially be lethal doses in a very short period of time."
Jaczko noted the NRC had very limited data on what was going on in Japan and he did not want to speculate too much on the matter. "Our information is very limited," he said.