The media of course presents this in the only fashion it knows how - as a concocted fairy tale of the sort that the moron readership can possibly digest or take interest in. The scientists themselves seem to make a strange leap, but it's important to discuss how we define liberal including the article's use of the term "novelty-seeking." For instance,
suggested that those with the novelty-seeking gene variant would be more interested in learning about their friends' views, exposing them to a wider variety of lifestyles and beliefs and making them more liberal as a result.
And they suggest that interacting with friends will cause people to take interest in different kinds of people and lifestyles, as if this underlies a "liberal political ideology," but how do we define that term? That does not mean such a person "will vote for Obama." It means such a person will understand multiple types of people and tolerate or encourage differences.
In that sense, the JTF policy is "liberal." Not "liberal" in the way the author of that article misunderstands the word's definition, or the vast majority of the people reading it, but liberal in the true sense of the word.
But what was the criteria used by the researchers to quantify and qualify "liberal ideology?" If it was a survey of questions about how to treat others and how people view various individual subject matters, this could be indicative of something. But if it was a survey such as "Are you a democrat?" "Did you vote for Obama" "Do you think that racism is evil?" then this is just a worthless waste of time.