A pathbreaking neuroscientist reveals how our social instincts turn Me into Us, but turn Us against Them — and what we can do about it The great dilemma of our shrinking world is simple: never before have those we disagree with been...

We know that each of us is unique, but science has struggled to pinpoint where, precisely, our uniqueness resides. Is it in our genes? The structure of our brains? Our genome may determine our eye color and even aspects of our persona...