It is, of course, slanted in as pro-left a direction as they can manage, but the info is there. If you have less of an instinct for disgust at nasty things, you are more liberal. Those with stronger instincts for disgust are conservative. I believe THIS is why the left pushes disgusting things so much. They do their best to normalize us to the nastiest things on this planet, the most degenerate acts, the filthiest conditions, to kill the extremely beneficial disgust mechanisms we naturally have.