"Those who study human behavior attribute hate speech more to deep personality issues than a diagnosable mental illness. But they're also intrigued by how the white supremacy movement is rebranding itself for the 21st century. The well-known racist symbols of white robes and hoods or shaved heads and torches have given way to a clean-cut subtlety for the millennial generation... Young people with a troubled past are especially vulnerable, said psychologist Ervin Staub, of Holyoke, Massachusetts, a professor emeritus at the University of Massachusetts-Amherst who studies social processes that lead to violence... A 2015 report from the National Consortium for the Study of Terrorism and Responses to Terrorism found that former members of violent white supremacist groups showed almost half (45 percent) reporting being the victim of childhood physical abuse and about 20 percent reporting being the victim of childhood sexual abuse... humans are complex. In the deep South, it was once common for otherwise upstanding citizens – mayors, sheriffs and judges, among others – to also be members of the KKK."