Japanese Officials Say Nuclear Fuel Rods Likely Melting In All Three "Troubled" Japanese Reactors

Japanese officials say the nuclear fuel rods appear to be melting inside all three of the most troubled nuclear reactors.

Chief Cabinet Secretary Yukio Edano said Monday: "Although we cannot directly check it, it's highly likely happening."
Some experts would consider that a partial meltdown of the reactor. Others, though, reserve that term for times when nuclear fuel melts through a reactor's innermost chamber but not through the outer containment shell.

• Read more: Japanese Officials Say Nuclear Fuel Rods Likely Melting In All Three "Troubled" Japanese Reactors