The wall of the south side is falling apart at reactor 4.
Reactor 4 is in the most serious situation. It is assumed that if another aftershock hits it to drop the spent fuel pool hung in the building, the entire area in eastern Japan would be too contaminated to be inhabitable.
On 12/2/2011 (JST), something like “fire” was observed beside reactor 4.
Since then, a strong light has been set toward Fukuichi camera as if it was hiding something by white out.
However, thanks to JNN Fukushima live camera, it was confirmed that the wall of reactor 4 was lost on the south side. At least since 12/5/2011, the wall is missing.
9/21/2011 (The wall intact.)
12/5/2011 (The wall is gone)