A study came out awhile back showing that politics kills your ability to effectively analyze data. For most informed people (and informed is a label that could be correctly applied to a very small percentage of the population), this was a total well duh! moment. Still, it's always good to have some rigidly-created data to back up anecdotal observation.
Every time I see something like this, I get depressed. As someone who loves science and philosophy, history and literature, the predilection for humanity to just revel in its own prejudice and stupidity is enough to send me off a bridge. To combat this suicidal drive, I read Machiavelli. While I think that The Prince may have been dark satire, its cold, cruel views of humanity always make me feel that if humans want so desperately to be tricked, then goddamnit, trick them.