away from the reactor in a labyrinth of car doors once flooded by the tsunami we have to change our shoes several times as a precaution against radioactive dust we get to the control room of reactors three and four eight years ago this is where stuff desperately trying to prevent the meltdown of the reactor core. which i think that. two weeks ago a tepco robot for the first time reached the materials which were produced in the in a court during the meltdown. no one knows exactly where all of the estimated eight hundred eighty tons of this material. at chernobyl the material was incased in concrete but tepco wants to extract it completely. it's. goal of thirty to forty years is not based on exact information but is instead