Japanese prosecutors must decide this month whether to charge Tokyo Electric Power Co former executives for their handling of the 2011 Fukushima disaster, in a process that could drag the wrecked nuclear plant's operator into criminal court. The judicial review is unlikely to see the former Tepco executives go to jail, legal experts say, but rehashing details of the meltdowns and explosions that followed an earthquake and tsunami will cast a harsh light on the struggling utility and will not help Prime Minister Shinzo Abe's unpopular effort to restart Japan's nuclear reactors.