Dangerous... really?
For starters, everyone has their "theory" on what the hazard levels are on these things. If I recall there was an article reflecting on the R&D of the atomic bomb and Thorium or another material was first tested as a candidate and as the article above states, thorium was passed over due to the inability to make weapons grade materials with it in a realistic fashoin.
Anything that is used for this that is "radioactive" is going to have byproducts, thorium at least is a lower grade alternative to the uranium class of reactor.
If it is safer, make small reactors, put them in areas that are low impact... put more of them out there. Stop trying to build another 3 Mile Island or Chernobel.
Japan needs to tear theirs down before they kill all of us.
