The test was requested by the Japan Nuclear Energy Safety Organization. The government-affiliated agency called for an initial test that would include transporting a protective fuel cask from the No. 4 storage pool to another pool in a different building about 100 meters away, to provide more stable conditions for cooling spent fuel, the sources said. [source JAPAN TIMES]
I mean, hundreds of thousands of gallons of highly radioactive water just sitting around in plastic lined containers for two years due to a reactor EXPLOSION and three meltdowns at the same plant massively increasing the radioactivity of the land around Fukushima and the sea off Japan and (effectively) the entire Pacific Ocean.
What could possibly go wrong?