Interesting TED talk on social psychology. I think he's right on to point out 5 traits that predict political behavior, and I think we can learn a lot if we can identify when conflict boils down to difference of opinion on those traits:
The Moral Mind
At the end he appealed to people to be less polarized, but unfortunately, I think he did it in a way that will only appeal to liberals, by pointing out eastern thinking on the topic.
Hopefully conservatives won't get distracted by that part; there are plenty of Christian and traditional American values that say the same thing. The Good Samaritan, the Sermon on the Mount, the founding fathers all encouraged people to try to accept and understand the virtues that outsiders can bring.