[alexander_busek]

Fusion (hydrogen to helium) not fusion fission (splitting thorium, uranium, or plutonium).

And, technically, thorium isn't split. It namely isn't fissile but rather fertile (i.e., can be converted into a fissile material through the absorption of neutrons).

Regards,

[grey_whiskers]

Geez, I try to dumb it down for the masses and look what happens.