Grossi, the head of the IAEA, says that there may be disagreements among the experts who worked on the Fukushima study.

On Friday, the head of the U.N. agency that keeps an eye on nuclear issues said that one or two of the foreign experts who worked on the report that gave Japan permission to release treated radioactive water from the damaged Fukushima plant may have had concerns.

When asked if there were any disagreements among the experts who worked on the study, who came from 11 countries and included China, which has been the harshest critic of Ja....