Fukushima Daiichi nuclear disaster (Unit 3 Reactor) 13 March an official of the Japan Nuclear and Industrial Safety Agency (NISA) told at a news conference that the emergency cooling system of Unit 3 had failed, spurring an urgent search for a means to supply cooling water to the reactor vessel to prevent a meltdown of its reactor core. At 05:38 there was no means of adding coolant to the reactor, owing to loss of power. Work to restore power and to vent excessive pressure continued. At one point, the top three meters of the uranium/mixed oxide (MOX) fuel rods were not covered by coolant. At 07:30 JST,
Anti-nuclear movement in the United States do better to contemplate a radical redesign, or if that was not possible, to abandon such technology entirely. Nuclear power plants are a complex energy system. and opponents of nuclear power have criticized the sophistication and complexity of the technology. Helen Caldicott has said: "... in essence, a nuclear reactor is just a very sophisticated and dangerous way to boil water – analogous to cutting a pound of butter with a chain saw." These critics of nuclear power advocate the use of energy conservation, efficient energy use, and appropriate renewable energy technologies to create our energy future. Amory Lovins, from