Watch the video and pause it at 49 seconds.
Look to the left of unit 3 (which is featured). Unit 4 is in the background.
An Enenews commentator believes that the black flow visible in the background between unit 3 and the crane is melted corium from unit 4's spent fuel pool. [correction:unit 3]
[correction: the enenews commentator who posted this has corrected my representation of what he said: He wrote this comment: Majia, just a brief correction to your description above. I did not claim you are looking into corium from the SFP4, but that you are looking directly into the corium for SFP3 - which lost it's water in early December and I believe burned for two months]
I have no idea what it is, but I thought viewers more educated than I might be able to decipher what they are seeing.
Today the New York Times has an article, "Japan Weighed Evacuating Tokyo in Nuclear Crisis," about a new report documenting the chaotic early days of the crisis. The NYT states that authorities were very concerned about the spent fuel pools. The report indicates that the pools were subsequently found to be safe.
[excerpt from the NYT article] "The report also describes the panic within the Kan administration at the prospect of large radiation releases from the more than 10,000 spent fuel rods that were stored in relatively unprotected pools near the damaged reactors. The report says it was not until five days after the earthquake that a Japanese military helicopter was finally able to confirm that the pool deemed at highest risk, near the No. 4 reactor, was still safely filled with water...."
The article goes on to state that the US government "overreacted" because it thought that one of the spent fuel pools (unit 4) was burning:
[excerpted] "The report seems to confirm the suspicions of nuclear experts in the United States — inside and outside the government — that the Japanese government was not being forthcoming about the full dangers posed by the stricken Fukushima plant. But it also shows that the United States government occasionally overreacted and inflated the risks, such as when American officials mistakenly warned that the spent fuel rods in the pool near unit No. 4 were exposed to the air and vulnerable to melting down and releasing huge amounts of radiation..."
Majia here: Is the report described by the New York Times another whitewash?
Did spent fuel pool #4 burn?
If not, what was that strange, massive, glowing blob that was visible in the middle of building 4 from the JNN/TBS cam for weeks in Jan and early Feb?
There are too many unanswered questions here and too many accounts of inexplicably high radiation levels still on the US west coast, as documented by Michael Collins http://www.enviroreporter.com/2012/02/beta-watch/