Existing technology reactors are an acceptable energy source so long as we can safely and permanently store the spent fuel.
While we have good supplies of Uranium, since it is not renewable, it is not sustainable.
Since the waste lasts almost forever, it is not a perfect solution but it is a better interim solution for producing electricity than burning coal or oil.
Future nuclear technologies like controlled fusion would be much better but we may not develop it soon enough.
We need to use renewable sources like hydroelectric, solar and wind and eliminate our dependence on burning coal and oil.
Our governments are still controlled by the auto industry and the traditional energy producers. If that were not true, we would have an established end date for the production and importation of fossil fuels and vehicles that depend on such fuels.
Until we HAVE TO switch to renewable sources of energy, we will drag our feet until our cars can’t be used and we all can hardly breath!