Japanese officials allowed owners of the damaged Fukushima nuclear power plant to empty tanks holding 10,000 tons of slightly radioactive water into the ocean – in order to make room to pump highly contaminated water out of reactor No. 2.
The contaminated pools in the reactor turbine buildings have created a tough new challenge for officials trying to contain the Japan nuclear crisis. The source of radioactivity is a mystery.
Three workers waded Thursday through water with critically elevated radiation levels. They are now being monitored, and officials are encouraging residents outside the initial evacuation zone to relocate.
Difficulties in measuring radiation are increasing confusion in Japan. The government must weigh incomplete and sometimes contradictory data before making decisions.