it never was meant to be and wouldn't if not for the governments need to put a happy face on splitting atoms so the public wouldn't stop them from building the bombs that for some reason they think they need thousands of, enough to destroy the earth many times over. Dollar wise nuclear is not feasible on its own. The nuclear power industry is a whole lot like walmart, in order for them to take so much of our money they have to have government handouts. In walmarts case its subsidizing the underpaid workers amongst others, in nuclear industries case its government subsidies just to make it happen. Hell, insurance for a nuke plant alone would stop them in the board rooms and would never make it to the public.
Nuclear is not clean by any measure either. From beginning to end they barely beat out fossil fuel. Decommissioning a nuke is going to be a bitch and very costly too. Even after decommissioning I doubt the land the set on can ever be used safely for years and years.
In jim inhofe's words its the biggest hoax ever perpetrated on the American people.