Alondra Nelson takes us on a journey into how the double helix has wound its way into contemporary social issues around race. She explains how DNA-based techniques are being used in myriad ways, including the unfinished business of slavery: to foster reconciliation, to establish ties with African ancestral homelands, to rethink and sometimes alter citizenship, and to make legal claims for slavery reparations. Author and journalist A’Lelia Bundles will join Nelson. A book signing follows the program.