Headline: People Make Poor Decisions!

Especially when it comes to politics:

Researchers asked staunch party members from both sides to evaluate information that threatened their preferred candidate prior to the 2004 Presidential election. The subjects' brains were monitored while they pondered.
…
"We did not see any increased activation of the parts of the brain normally engaged during reasoning," … "What we saw instead was a network of emotion circuits lighting up, including circuits hypothesized to be involved in regulating emotion, and circuits known to be involved in resolving conflicts."