NHK: ‘Particles’ impairing visibility in Fukushima pool — Will try to remove spent fuel Tuesday, said to be “one of most dangerous operations ever attempted in nuclear history” — Tepco concerned about sabotage, warns media about filming

Scientist back from Japan: Melt-through of Fukushima containment vessels being discussed — They can’t locate any of the 3 molten reactor cores — “It’s bad, it’s definitely not over”

Source: First try to remove spent fuel from Unit 4 could be next week — Nuclear Engineer: Everyone’s nervous about pulling out used rods that are corroding; Will zircoloy tubes break and spill fuel pellets, leading to a criticality? (AUDIO)

Watch: Underwater close-up of fuel assembly pulled from rack at Fukushima Unit 4 — Debris seen floating inside pool (VIDEOS)

Tepco Adviser: 925 quadrillion Bq of contaminated water from trying to cool melted Fukushima cores in first few months after 3/11 — TV: “Tepco has no idea where the fuel is” (VIDEO)

Nuclear Engineer: New cover on Unit 4 can trap hydrogen gas during criticality in fuel pool — Blast would be close to a nuclear explosion, from a practical standpoint (AUDIO)

“A very alarmingly high number” — Magazine: Fukushima released up to 100,000 times more cesium-137 in surface ocean waters than Chernobyl or nuclear weapons testing (PHOTO)

Nuclear Engineer: Every expert I talked to this week is very concerned about a criticality event during fuel removal at Unit 4 — “There’s good potential for a criticality” (AUDIO)

Professor: Fukushima twice as strong as Chernobyl when comparing species of birds found in both places — We don’t know why they are doing even worse in Fukushima (VIDEO)

TV: Mentally disabled are working at Fukushima Daiichi, says journalist — Many men forced to go to plant — Homeless treated like ‘disposable people’ (VIDEO)

Gundersen: Up to 3 explosions hit Fukushima Unit 4 after 3/11 — Study: There was fire in its spent fuel pool — NPR: Big worry since fire weakened building’s structure (AUDIO)

Conservative Radio Host: Fukushima could be going on for centuries — Nobody knows how deep fuel went after melting — It’s sad people not paying attention, busy watching TV and football — Interviews Arnie Gundersen (AUDIO)

Tepco: Plutonium is in Unit 4 fuel, it can be leaking out from holes and cracks in rods — Former Fukushima Engineer: State of plant is “hopeless”; Unit 4 vulnerable, “very dangerous”

Tepco President: “Be prepared for the worst” — Fukushima is “a warning to the world” — “We made a lot of excuses to ourselves”

AP: Melted Fukushima fuel is 12 inches from entering ground after eating through concrete, says simulation — Study: Molten core suspected of eroding through concrete foundation — Gov’t Expert: We just can’t be sure until actually seeing inside

Fukushima Reactor Designer: I doubt plant can be decommissioned, perhaps enclose it in cement — Nuclear Professor: Solution is to pour concrete all over, but now it’s too late (VIDEO)

TV: Work at Fukushima plant to go on for 10,000 years? Nuclear Expert: “It’s longer than human history” (VIDEO)

Nuclear Professor: Yes, worry about what they’re doing at Fukushima, there’s good reason — One mistake from disaster — Gov’t has lost public trust, I don’t believe them either — Another quake to be ‘final blow’ for Japan (VIDEO)

Gundersen: Unit 4 pool can turn into a nuclear reactor as they pull rods up — Bloomberg: Like a “self-sustained chain reaction similar to meltdowns” — NHK: Fuel is 1% plutonium (VIDEO)

AFP: M5.7 quake jolts eastern Japan Tuesday morning — Almost 200 miles deep — Expert: The big danger is water suddenly draining from Fukushima Unit 4 pool after quake or dropped cask (PHOTO)

Tepco Adviser: “Everyone in the world” will be safer if fuel rods transferred from Fukushima Unit 4 — WSJ: Global concern over removal process (VIDEO)

Japan Nuclear Professor: Fuel pool ‘unstable’ at Fukushima No. 4 — Tepco’s been examining stability of reactor building, says no sinkage from soil subsidence — Reuters: It’s buckled, tilted, at risk of collapse in quake — Kyodo: Structure ‘crumbling’