The police violence pandemic directed toward members of racialized populations in the United States, particularly but not exclusively African American men (African American women and indigenous groups face similar injustices), has produced widespread protests and some immediate changes across the United States and around the world. The extent to which the Black Lives Matter movement will be sustained as was the civil rights movement in the 1960s is not yet known, but broad participation among racial, economic, and age groups is encouraging. There are opportunities for all to participate in the movement simply as members of society; we argue here, however, that behavior scientists and practitioners have unique potential, and an ethical obligation, to contribute to achieving meaningful change while recognizing that we offer only part of what is necessary for social advancement. In 1967, Reverend Martin Luther King, Jr. (1968), gave a distinguished address to the American Psychological Association titled "The Role of the Behavioral Scientist in the Civil Rights Movement." He noted that "for social scientists, the opportunity to serve in a life-giving purpose is a humanist challenge of rare distinction. Negroes too are eager for a rendezvous with truth and discovery." He then suggested areas where help would be welcomed. The need is clearly still great, but behavior science has yet to prioritize this work. Perhaps this is the moment. The Association for Contextual Behavioral Science recently released a statement reading, in part, We, the Board of ACBS, are writing this statement to unequivocally oppose structural, cultural, and individual racism, racially motivated violence, hate speech and all forms of prejudice and oppression in evidence throughout the world. We invite our community of researchers, therapists, and helpers to look hard at the many ways in which racism manifests in the world at large. We ask that our scientific community bring to bear the significant strength of contextual behavioral science in shining a light and exploring solutions to discrimination and Behavior and Social Issues