Earlier this year a piece of emotion research provoked a rather heated reaction in some quarters after it claimed to show that, contrary to the writings of Charles Darwin, Paul Ekman and others, facial emotional expressions are not universal after all. "Seriously, is this all that it takes to be published in Current Biology? Sheesh," was the verdict of one incredulous online commenter to Reddit (a more considered critical reaction is here). Now, with a diplomat's tact, David Matsumoto and collea