> There are far more missing nuclear submarines than I would have ever expected Of all nuclear accidents, these are easily the least concerning. For one, only

> There are far more missing nuclear submarines than I would have ever expected Of all nuclear accidents, these are easily the least concerning. For one, only two western nuclear submarines have ever been lost and those were well publicized, nobody should be surprised by those. The Soviets/Russians lost quite a few, which I don't think many people would find surprising, but it's really not a big deal anyway from an environmental perspective. Sea water is excellent shielding, the wrecks are now used as habitats for all kinds of sea life which is unfazed by the radiation. As for heavy metal pollution, ocean water already has several billion tons of uranium and other heavy metals dissolved in it, naturally. A few more tons from a few reactor cores is nothing. Quite frankly, we should view deliberately dropping old nuclear reactors into the ocean as a practical and economical method of disposal. In fact, the Soviets and the UK have deliberately done this several times and (the US and Switzerland did too, to a much lesser extent.) There is no evidence that any of this has caused any harm to the environment.