Some have sank. Including Russian ones, and the radiation doesn't care where we live. I think they managed to retrieve a Russian one before the salt water breached the core. I doubt they can decommission the reactor on a sub so they are either stacking up somewhere, being scuttled, or maybe both. I don't know. I don't follow the Navy around. Just more nuclear garbage with the same attributes of all the rest of the waste, including the stuff in Australia. That crap may be in the fires or maybe not. No one is saying anything.