Workers continue repairs at stricken plant

Officials are racing to restore electricity to Japan’s leaking nuclear plant, but getting the power flowing will hardly be the end of their battle: with its mangled machinery and partly melted reactor cores, bringing the complex under control is a monstrous job.

Restoring the power to all six units at the tsunami-damaged complex is key, because it will, in theory, drive the maze of motors, valves and switches that help deliver cooling water to the overheated reactor cores and spent fuel pools that are leaking radiation.