Interesting information about reactor #4 building leaning. That must be why they were worried about the weight of the water they were injecting into the spent fuel affecting the structural integrity. If that damage was just due to the earthquake, they might have to shut down at least two other plants. Do not think it was earthquake damage. Was probably due to Tsunami wave and the massive explosion nearby in #3 and the hydrogen explosion/fire above the #4 spent fuel pool.
At any rate, new video shows that the spent fuel pool for #3 is a absolute mess.