Former Fellow Song Richardson (’93), the dean of the University of California, Irvine School of Law, spoke about unconscious racial bias in a video produced by the Innocence Project and posted on YouTube (“The Impact of Human Factors on Criminal Investigations,” Nov. 19). “To understand unconscious racial bias, we need to understand a little bit about how our brains work,” Song said. “Our brains learn through associations. They make quick, unconscious and automatic associations in response to a stimulus. [Most] individuals, regardless of our race, associate young black men with criminality and dangerousness.”