The resurgence of race as biological concept is one of the most pressing social justice challenges raised by recent developments in genetic science and technologies. Dorothy Roberts, noted professor of law at Northwestern University, discusses her efforts to communicate this trend, and to place it within broad social and political contexts in the United States, in her recently published book Fatal Invention: How Science, Politics, and Big Business Re-create Race in the Twenty-first Century. Dorothy is interviewed by UC Berkeley associate professor of bioethics David Winickoff.