A panel of government-appointed experts says more measures are needed to contain the increase of contaminated water at the Fukushima Daiichi nuclear power plant even after a frozen soil wall was built there. The panel says it's also essential to block the flow of rainwater into reactor buildings.
The panel met on Wednesday to discuss a recent estimate by plant operator Tokyo Electric Power Company, or TEPCO, of the effectiveness of the wall around 4 damaged reactor buildings at the plant.