Joseph Cirincione reported on Saturday's edition of the NBC Nightly News that a third reactor at Fukushima Daiichi may also have experienced a backup coolant failure. In effect all three operating reactors at the facility are failing.Excerpted from “Second nuclear meltdown likely under way in Japan, official says,” NBC, msnbc.com and news services, updated 2 minutes ago
A partial meltdown is likely under way at second quake-stricken nuclear reactor, Japan's top government spokesman said Sunday.
Fuel rods were briefly exposed and radiation levels briefly rose above the legal limit at the nuclear plant where both reactors are located, said Chief Cabinet Secretary Yukio Edano.
His statement came after Japan's largest electric utility started releasing steam Sunday at one quake-crippled nuclear reactor while trying to stop a meltdown that began a day earlier in another. …