Bad ones are massive obstacles in nuclear energy. I don't think that the government can solve this, this is a human obstacle. As either oil prices rise or we run out of fuel to burn, energy corporations should get incentive to invest in nuclear/solar power as they become more cost effective than oil.
Here's a good question. Is it possible for government regulations to make nuclear cheaper than coal/oil? I don't think so without resorting to flat out bans, massive subsidies, or price-fixing. I just think it's something that has to solve itself. The invisible hand of the free market should draw energy corporations into alternatives to oil as prices rise and supply falls.
Fusion is really the holy grail.
We just have to be patient to be able to sustain reactions. Experiments have generated 15mW for less than a second,obviously, totally useless so far. A new research plant was opened a few years ago in the states, hopefully that sees some advances.