Sort:  

They should have flooded the entire site with BORON the day after it happened, as that would have halted most of the reaction...but there is a reason we are not being told that this reaction was WANTED to be continued...it's been 7 years now...that's more than enough time for the slowest steamer to reach Japan and drop off MEGATONS of boron.

They haven't done it. The question is WHY?