Misawa is basically spouting the party line about the Fukushima nuclear disaster which is the worst nuclear accident to date and which
is a greater threat than the Chernobyl  accident in the Ukraine in 1986.  His claim that the accident is not causing a rise in radiation in
the Pacific is laughable when hundreds of tons of  highly radioactive water is being released continuously into the ocean since the initial meltdown that occurred at the Fukushima nuclear power plants.  Even the people in Japan no longer believe that the government is telling them the  truth about the threat that the disaster poses.  The clean-up if that is even possible is expected to take more than 40 years.
When another major earthquake occurs in the Fukushima area, it will cause damage to the hundreds of nuclear fuel rods that the power
company has been desperately trying to keep cool since the accident  and this will result in a major explosion at the reactors. When that
happens, it will be game over.