The Second (American) National Risk and Culture Study is first in a group of PDFs I downloaded some time ago because they looked interesting.
It’s main conclusions are that it is often the case that the facts of an argument have less baring on people’s opinion of the premise than whether (1) they feel their world-view may be attacked by the outcome of implementing the argument and (2) whether or not they feel that the person presenting the argument holds the same world-views as them.
The latter is particularly interesting when you have two people who appear to have the same world view as the subject argue either side of the case for a given controversial topic. As the subject isn’t threatened by the world-view of one of the speakers s/he actually listens to the facts in the arguments.
Anyway, If you’re interested in politics and why people tend to polarize into world-view cultural camps it’s definitely worth a read – especially as it weighs in at under 30 pages.