'A very fragile situation': Leaks from Japan's wrecked nuke plant raise fears

[JayhawkSD]

4. The problem is something called "breakthrough"

Controlled fusion reaction requires a "break through" in technology, and that is completely unpredictable. It could happen tomorrow, or we could spend hundreds of billions of dollars for centuries and never achieve it. It is, at this point a complete pipe dream, because so far we have not even come close. We have been trying for decades and are still not within an order of magnitude of achieving it.

I certainly do not advocate expansion of nuclear energy, or even the continued relaince on it, but to advocate against it based on the argument that we can replace it with fusion energy is simply wild eyed speculation. We cannot abandon what we have based on the hope for something that is extermely unlikely to happen.