Spent nuke fuel pool may be boiling, further radiation leak feared
This is kind of what they were worried about, the spent fuel pools need to also be kept cool by pumped water and the difference is that they aren’t in a containment vessel.
From your link, I gather: Very high levels are not being emitted from #4, but if the water level drops through boiling off and if they can’t get more water on the rods, there could be very high consequences.
What did you get from it?