Balaam they have ways of storing the used uranium etc... the Russians for instance used to dump their reactors from old suubs in the Balkan sea in kilometres of mud that from what I can remember doesnt corrode or corrodes the reactors so slowly that by the time they corrode away and "leak" radioactive waste that waste is just about all gone well back to human levels anyways.... and they are constantly working on how to store it without it causing destruction to the environment that its surrounded by.....