At 1 minute 44 seconds the narrator says that post Earthquake an explosion disabled the emergency diesel powered generator, only after that the Tsunami hit .. Don't it resonate with Willie Rodriguez testimony that there were explosions at the WTC before the first air strike!
The pic shows a mushroom cloud rising above the Fukushima Daiichi reactor .. there is no way either a hydrogen explosion or a meltdown could produce such an effect.
When hydrogen gas explodes the blast produces a sheet of flame, as the hydrogen atoms each combine with two oxygen atoms to produce water.
Unless the explosion occurs in a confined space, whence extra material is either flung around or is set on fire or detonated by the initial blast, there is no shrapnel and no smoke.
In a nuclear reactor uranium fuel rods that remain stable in correct storage, are put together to make a “nuclear pile” which will increase in temperature exponentially of its own volition, unless cooled or separated.
Sodium is exposed to the pile which becomes a radioactive liquid, that is passed thru pipe nests in heat exchangers to heat 2nd batch non radioactive sodium.
That goes thru second round exchangers that heat water to make steam that drives the Power Station’s turbines, which turn generators to produce electricity.
In a meltdown the flow of coolant delivered to the reactor core is interrupted, which unless the pile is reduced and the system isolated, becomes a run away or uncontrolled process that leads to meltdown, the welds the heat exchangers get over stressed and crack.
Makes a soup of radioactive and non radioactive liquid sodium and high pressure steam, the resultant explosion reduces the reactor to wreckage, and releases a cloud of highly radioactive steam into the atmosphere.
At no time is a mushroom cloud produced like the one in the shot .. says there was a missile strike, like the missile strikes on the WTC and at the Pentagon on 911.