A few good points, SnozzleBerry.
I misspoke, and will change the title of the thread. It should say "A more green power source". Yes, I realize that the materials must come from other industrial processes. Ultimately, a system run primarily off a power source like this would mean a clean source of energy, and at low cost. Coupled with good recycling practices, I think this could pave the way for a much more harmonic society.
The projected cost of energy from thorium plants is much lower than any other practices. In developing countries, the only feasible candidate for power production is oil or coal. Wind and solar are much too expensive. So, the only hope for the poor nations is cheap energy, and Thorium would under-cut even fossil fuels. This is another reason why I see it as more green.
While there is a possibility for the production of nuclear weapon material, it is at least much more difficult compared to traditional nuclear reactors. I think (this is opinion, of course, but very well could be backed up with proper risk-assessment) that the risk of nuclear weapons being made is worth the venture. Around 85% of the energy produced in the U.S. is from fossil fuels. It is simply not feasible to replace that energy with wind, or solar. The price is too high, the land use is too great, these power sources are too intermittent and these energy sources would likely use much more industrial processes and resources than Thorium power plants.
I think, also, that countries with strong economies, and good cheap energy are much less likely to pursue nuclear weapons in the first place. Countries that are out of poverty are much less likely to be aggressive, in general. So hopefully the issue of nuclear weapons would be a moot point, once the world has transitioned to Thorium power.
So, in short, I agree. There is no truly green power source for humans to use, but this seems like the best we have at the moment. And yes, the two statements about nuclear weapons are drastically different. At the moment, production of uranium by thorium has yet to be done. So, at least this whole idea certainly deserves looking into.
Here's a longer video that goes into the history of nuclear energy, and why thorium never got off the ground. Towards the end it gets more into the theory of operation, and the economic and environmental impacts.
Be an adult only when necessary.