(I'm actually a little surprised to find someone so under informed on Slashdot.
LFTRs advantages:
There are also abundant levels of Thorium on the lunar near-side
The base concepts of the LFTR were desinged in the late 50's by Alvin Weinberg for a nuclear airplane design. Further refinements of the molten salt concept were tested very successfully for four years (1964-1969) at Oak Ridge National Lab.
The project was eventually discontinued because the molten-salt reactors can't be used to produce weapons-grade plutonium and they are very safe relative to almost any other reactor and made fast breeder reactors look bad.
LFTR reactors could be mass produced and delivered on trucks, from 100kw to multi-gigawatts.
A LFTR the size of an 18 wheeler should deliver at least 100kw.
The quantity of Thorium on Earth is thought to be enough to power the planet at the current rate for approximately 100,000 years.
Why not fund LFTR research at NASA while they are at it? The Chinese have already restarted all of our original research. If they create a good reactor and patent it we will feel like total idiots.
Energy From Thorium: here
Living on Earth may be expensive, but it includes an annual free trip around the Sun.