ted.com is a great site where, instead of just words posted on a site about a subject, they post short videos from those who are generally experts in their field. If not experts, they are really well informed.
I do not know anything about thorium. This short video really talks in layman's terms so that dummies like me can even understand what they are talking about. Great video about a safer alternative fuel that is possible in place of nuclear fuel.
http://www.ted.com/talks/kirk_sorensen_ ... _fuel.html