This would be extremely expensive. Like outrageously...
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France is way ahead of us on a bunch of things, especially nuclear power.
http://upload.wikimedia.org/wikipedi...France.svg.png
France stuck with their nuclear options and expanded them. "Environmentalists" in the US essentially froze our nuclear programs decades ago due to panic about radiation (which is much less of an issue these days--we're much better at recycling/refining spent fuel now).
As for fusion.. there are experiments going on in California I'm aware of, but nobody's managed to make a continuous "creates more energy than making fusion costs to start" reactor. Last I heard, the Lawrence Livermore lab in California managed a singular reaction (which requires a significant cooldown time) that actually broke even energy-wise, which is a major accomplishment.
Incidentally, there's a giant fusion reactor up in the sky already.